877.454.7792 Contact Us Mon-Sat 10a-6p
DRIVEN BY CARE

JBA Performance Exhaust 65-91 GM Truck Cat4Ward® 5.0/5.7L, 265-400 Raw 409 1830S-6

JBA Performance Exhaust 65-91 GM Truck Cat4Ward® 5.0/5.7L, 265-400 Raw 409 1830S-6
$1,526.99 kt
NEWARRIVING SOONEstimated Ship Date 09/25/2026 (If Ordered Today)
Model: 5123066
Select a Vehicle or refer to the Vehicle Fitment Tab below to verify that this part fits your vehicle.
STANDARD
DELIVERY
STORE PICKUP
[More Info]
JBA shorty headers are one of the foremost performance upgrades you can bestow upon your beloved car, truck, or SUV. JBA Headers are significantly less restrictive than stock manifolds and dramatically increase the power and efficiency of your engine. Each header is constructed from durable stainless steel to endure the abuse of racing, towing, and daily driving – built to withstand it all. JBA’s proprietary Firecone collector design uses race proven technology for producing maximum power and torque gains where you drive most. Each system includes factory style emission connections and high-quality hardware for a professional no-leak installation.
Features:
  • Mandrel bent stainless steel tube
  • Proprietary JBA Firecone collector
  • Factory style emission connections
  • Extra thick collector domes
  • 3/8" thick machined flanges with Oversized exhaust ports
About JBA Performance Exhaust

JBA is one of the most trusted names in the aftermarket exhaust industry because of our commitment to manufacturing excellence. Our product designs are original, innovative and always deliver. Power, quality, fit, durability, and emissions legality are what we are known for. In 1987, those qualities were not present in the header or exhaust industry, so JBA set out to build our own products to meet the needs of the growing street performance market. Originally developed for the 5.0L Mustang, JBA's replacement Cat4Ward headers were engineered with heavy-duty features, easy installation, a durable design, and emissions legal status that made them an instant hit with automotive enthusiasts across America. As demand grew and emissions regulation increased, we saw the need to broaden our product line to cover most popular GM, Ford, Dodge, Jeep, Nissan and Toyota vehicles. We have applied our manufacturing philosophy and build qualities to our entire product line to offer you the most complete line of quality 50 sate emissions legal exhaust products in the industry. Today we offer a variety of products to meet the demands of the performance enthusiast; JBA Cat4Ward Headers, JBA Performance Exhaust Systems, JBA PowerCables ignition wires and our new line of Long Tube Race Headers, all available direct from this website or through our network of installers, retailers, and mail order performance retailers.

Downloads:

Download Name File Size
1830S-6.pdf1.07MB

Vehicle Fitment:

The Vehicle Fitment Guide is to be used as a general reference. The data has been provided by our suppliers and manufacturers and may contain errors or incorrect data. Always refer to a professional to verify correct fitment for your vehicle.
Make Model Years Engine Fitment Notes
Chevrolet Blazer 1969 5.7L / 350 / V8
5.0L / 307 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet Blazer 1970 5.7L / 350 / V8
5.0L / 307 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet Blazer 1971 5.7L / 350 / V8
5.0L / 307 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet Blazer 1972 5.7L / 350 / V8
5.0L / 307 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet Blazer 1973 5.7L / 350 / V8
5.0L / 307 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet Blazer 1974 5.7L / 350 / V8 Installation requires welding/modification to exhaust system./modification to exhaust system.
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet C10 Pickup 1965 4.6L / 283 / V8 Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
Legal for use on 65-67 C10 Emission Vehicles in 50 States
Chevrolet C10 Pickup 1966 4.6L / 283 / V8
5.3L / 327 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
Legal for use on 65-67 C10 Emission Vehicles in 50 States
Legal for use on 66-67 C10 Emission Vehicles in 50 States
Chevrolet C10 Pickup 1967 4.6L / 283 / V8
5.3L / 327 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
Legal for use on 65-67 C10 Emission Vehicles in 50 States
Legal for use on 66-67 C10 Emission Vehicles in 50 States
Chevrolet C10 Pickup 1968 5.4L / 327 / V8
5.3L / 327 / V8
5.0L / 307 / V8
Installation requires welding/modification to exhaust system.
Use big block flapper valve for smog legal applications.
Replacement spark plug wire and/or boot included.
Uncoated
without Smog Pump
Legal for use on 1968 C10 Emission Vehicles in 49 States
Not Legal for use on 1968 C10 Emission Vehicles in California
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
CARB Executive Order D-57-33
Chevrolet C10 Pickup 1969 5.7L / 350 / V8
5.0L / 307 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet C10 Pickup 1970 5.7L / 350 / V8
5.0L / 307 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet C10 Pickup 1971 5.7L / 350 / V8
5.0L / 307 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet C10 Pickup 1972 5.7L / 350 / V8
5.0L / 307 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet C10 Pickup 1973 5.7L / 350 / V8
5.0L / 307 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet C10 Pickup 1974 5.7L / 350 / V8 Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet C10 Suburban 1967 5.3L / 327 / V8
4.6L / 283 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
Legal for use on 1967 C10 Suburban Emission Vehicles in 50 States
Chevrolet C10 Suburban 1968 5.4L / 327 / V8
5.3L / 327 / V8
5.0L / 307 / V8
Installation requires welding/modification to exhaust system.
Use big block flapper valve for smog legal applications.
Replacement spark plug wire and/or boot included.
Uncoated
without Smog Pump
Legal for use on 68-69 C10 Suburban Emission Vehicles in 49 States
Not Legal for use on 68-69 C10 Suburban Emission Vehicles in California
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
CARB Executive Order D-57-33
Chevrolet C10 Suburban 1969 5.3L / 327 / V8
5.7L / 350 / V8
5.0L / 307 / V8
Installation requires welding/modification to exhaust system.
Use big block flapper valve for smog legal applications.
Replacement spark plug wire and/or boot included.
Uncoated
without Smog Pump
Legal for use on 68-69 C10 Suburban Emission Vehicles in 49 States
Not Legal for use on 68-69 C10 Suburban Emission Vehicles in California
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
CARB Executive Order D-57-33
Chevrolet C10 Suburban 1970 5.7L / 350 / V8
5.0L / 307 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet C10 Suburban 1971 5.7L / 350 / V8
5.0L / 307 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet C10 Suburban 1972 5.7L / 350 / V8
5.0L / 307 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet C10 Suburban 1973 5.7L / 350 / V8
5.0L / 307 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet C10 Suburban 1974 5.7L / 350 / V8 Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet C10 Suburban 1975 5.7L / 350 / V8 Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet C10 Suburban 1976 5.7L / 350 / V8 Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet C10 Suburban 1977 5.0L / 305 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet C10 Suburban 1978 5.0L / 305 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet C10 Suburban 1979 5.0L / 305 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet C10 Suburban 1980 5.7L / 350 / V8 Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet C10 Suburban 1981 5.0L / 305 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet C10 Suburban 1982 5.0L / 305 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet C10 Suburban 1983 5.0L / 305 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet C10 Suburban 1984 5.0L / 305 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet C10 Suburban 1985 5.0L / 305 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet C10 Suburban 1986 5.0L / 305 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet C10 1975 5.7L / 350 / V8 Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet C10 1976 5.7L / 350 / V8
6.6L / 400 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Legal for use on 76-80 C10 Emission Vehicles in 49 States
Not Legal for use on 76-80 C10 Emission Vehicles in California
Chevrolet C10 1977 5.7L / 350 / V8
5.0L / 305 / V8
6.6L / 400 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Legal for use on 76-80 C10 Emission Vehicles in 49 States
Not Legal for use on 76-80 C10 Emission Vehicles in California
Chevrolet C10 1978 5.7L / 350 / V8
5.0L / 305 / V8
6.6L / 400 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Legal for use on 76-80 C10 Emission Vehicles in 49 States
Not Legal for use on 76-80 C10 Emission Vehicles in California
Chevrolet C10 1979 5.7L / 350 / V8
5.0L / 305 / V8
6.6L / 400 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Legal for use on 76-80 C10 Emission Vehicles in 49 States
Not Legal for use on 76-80 C10 Emission Vehicles in California
Chevrolet C10 1980 5.7L / 350 / V8
5.0L / 305 / V8
6.6L / 400 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Legal for use on 76-80 C10 Emission Vehicles in 49 States
Not Legal for use on 76-80 C10 Emission Vehicles in California
Chevrolet C10 1981 5.7L / 350 / V8
5.0L / 305 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet C10 1982 5.7L / 350 / V8
5.0L / 305 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet C10 1983 5.7L / 350 / V8
5.0L / 305 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet C10 1984 5.7L / 350 / V8
5.0L / 305 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet C10 1985 5.7L / 350 / V8
5.0L / 305 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet C10 1986 5.7L / 350 / V8
5.0L / 305 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet C15 1982 5.7L / 350 / V8 Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet C15 1983 5.7L / 350 / V8 Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet C15 1984 5.7L / 350 / V8 Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet C15 1985 5.7L / 350 / V8 Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet C20 Pickup 1965 4.6L / 283 / V8 Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
Legal for use on 65-67 C20 pickup Emission Vehicles in 50 States
Chevrolet C20 Pickup 1966 4.6L / 283 / V8
5.3L / 327 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
Legal for use on 65-67 C20 pickup Emission Vehicles in 50 States
Legal for use on C20 pickup Emission Vehicles in 50 States
Chevrolet C20 Pickup 1967 4.6L / 283 / V8
5.3L / 327 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
Legal for use on 65-67 C20 pickup Emission Vehicles in 50 States
Legal for use on C20 pickup Emission Vehicles in 50 States
Chevrolet C20 Pickup 1968 5.4L / 327 / V8
5.3L / 327 / V8
5.0L / 307 / V8
Installation requires welding/modification to exhaust system.
Use big block flapper valve for smog legal applications.
Replacement spark plug wire and/or boot included.
Uncoated
Legal for use on C20 pickup Emission Vehicles in 49 States
Not Legal for use on 68-69 C20 pickup Emission Vehicles in California
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
without Smog Pump
CARB Executive Order D-57-33
Chevrolet C20 Pickup 1969 5.3L / 327 / V8
5.7L / 350 / V8
5.0L / 307 / V8
Installation requires welding/modification to exhaust system.
Use big block flapper valve for smog legal applications.
Replacement spark plug wire and/or boot included.
Uncoated
Legal for use on C20 pickup Emission Vehicles in 49 States
Not Legal for use on 68-69 C20 pickup Emission Vehicles in California
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
without Smog Pump
CARB Executive Order D-57-33
Chevrolet C20 Pickup 1970 5.7L / 350 / V8
5.0L / 307 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet C20 Pickup 1971 5.7L / 350 / V8
5.0L / 307 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet C20 Pickup 1972 5.7L / 350 / V8
5.0L / 307 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet C20 Pickup 1973 5.7L / 350 / V8
5.0L / 307 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet C20 Pickup 1974 5.7L / 350 / V8 Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet C20 Suburban 1967 4.6L / 283 / V8
5.3L / 327 / V8
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
Legal for use on 1967 C20 Suburban Emission Vehicles in 50 States
Chevrolet C20 Suburban 1968 5.3L / 327 / V8
5.0L / 307 / V8
Installation requires welding/modification to exhaust system.
Use big block flapper valve for smog legal applications.
Replacement spark plug wire and/or boot included.
Uncoated
Legal for use on C20 Suburban Emission Vehicles in 49 States
Not Legal for use on 68-69 C20 Suburban Emission Vehicles in California
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
without Smog Pump
CARB Executive Order D-57-33
Chevrolet C20 Suburban 1969 5.3L / 327 / V8
5.0L / 307 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system.
Use big block flapper valve for smog legal applications.
Replacement spark plug wire and/or boot included.
Uncoated
Legal for use on C20 Suburban Emission Vehicles in 49 States
Not Legal for use on 68-69 C20 Suburban Emission Vehicles in California
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
without Smog Pump
CARB Executive Order D-57-33
Chevrolet C20 Suburban 1970 5.0L / 307 / V8
5.7L / 350 / V8
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet C20 Suburban 1971 5.0L / 307 / V8
5.7L / 350 / V8
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet C20 Suburban 1972 5.0L / 307 / V8
5.7L / 350 / V8
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet C20 Suburban 1973 5.0L / 307 / V8
5.7L / 350 / V8
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet C20 Suburban 1974 5.7L / 350 / V8 Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet C20 Suburban 1975 5.7L / 350 / V8 Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet C20 Suburban 1976 6.6L / 400 / V8
5.7L / 350 / V8
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
Legal for use on C20 Suburban Emission Vehicles in 49 States
Not Legal for use on 76-80 C20 Suburban Emission Vehicles in California
CARB Executive Order D-57-33
Chevrolet C20 Suburban 1977 6.6L / 400 / V8
5.0L / 305 / V8
5.7L / 350 / V8
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
Legal for use on C20 Suburban Emission Vehicles in 49 States
Not Legal for use on 76-80 C20 Suburban Emission Vehicles in California
CARB Executive Order D-57-33
Chevrolet C20 Suburban 1978 6.6L / 400 / V8
5.0L / 305 / V8
5.7L / 350 / V8
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
Legal for use on C20 Suburban Emission Vehicles in 49 States
Not Legal for use on 76-80 C20 Suburban Emission Vehicles in California
CARB Executive Order D-57-33
Chevrolet C20 Suburban 1979 6.6L / 400 / V8
5.0L / 305 / V8
5.7L / 350 / V8
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
Legal for use on C20 Suburban Emission Vehicles in 49 States
Not Legal for use on 76-80 C20 Suburban Emission Vehicles in California
CARB Executive Order D-57-33
Chevrolet C20 Suburban 1980 6.6L / 400 / V8
5.7L / 350 / V8
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
Legal for use on C20 Suburban Emission Vehicles in 49 States
Not Legal for use on 76-80 C20 Suburban Emission Vehicles in California
CARB Executive Order D-57-33
Chevrolet C20 Suburban 1981 5.0L / 305 / V8
5.7L / 350 / V8
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet C20 Suburban 1982 5.0L / 305 / V8
5.7L / 350 / V8
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet C20 Suburban 1983 5.0L / 305 / V8
5.7L / 350 / V8
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet C20 Suburban 1984 5.0L / 305 / V8
5.7L / 350 / V8
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet C20 Suburban 1985 5.0L / 305 / V8
5.7L / 350 / V8
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet C20 Suburban 1986 5.0L / 305 / V8
5.7L / 350 / V8
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet C20 1975 5.7L / 350 / V8 Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet C20 1976 5.7L / 350 / V8
6.6L / 400 / V8
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Legal for use on 76-80 C20 Emission Vehicles in 49 States
Not Legal for use on 76-80 C20 Emission Vehicles in California
Chevrolet C20 1977 5.7L / 350 / V8
5.0L / 305 / V8
6.6L / 400 / V8
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Legal for use on 76-80 C20 Emission Vehicles in 49 States
Not Legal for use on 76-80 C20 Emission Vehicles in California
Chevrolet C20 1978 5.7L / 350 / V8
5.0L / 305 / V8
6.6L / 400 / V8
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Legal for use on 76-80 C20 Emission Vehicles in 49 States
Not Legal for use on 76-80 C20 Emission Vehicles in California
Chevrolet C20 1979 5.7L / 350 / V8
6.6L / 400 / V8
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Legal for use on 76-80 C20 Emission Vehicles in 49 States
Not Legal for use on 76-80 C20 Emission Vehicles in California
Chevrolet C20 1980 5.7L / 350 / V8
6.6L / 400 / V8
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Legal for use on 76-80 C20 Emission Vehicles in 49 States
Not Legal for use on 76-80 C20 Emission Vehicles in California
Chevrolet C20 1981 5.7L / 350 / V8
5.0L / 305 / V8
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet C20 1982 5.7L / 350 / V8
5.0L / 305 / V8
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet C20 1983 5.7L / 350 / V8
5.0L / 305 / V8
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet C20 1984 5.7L / 350 / V8
5.0L / 305 / V8
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet C20 1985 5.7L / 350 / V8
5.0L / 305 / V8
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet C20 1986 5.7L / 350 / V8
5.0L / 305 / V8
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet C20 1987 5.7L / 350 / V8 Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet C30 Pickup 1965 4.6L / 283 / V8 Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
Legal for use on 65-67 C30 pickup Emission Vehicles in 50 States
Chevrolet C30 Pickup 1966 5.3L / 327 / V8
4.6L / 283 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
Legal for use on 66-67 C30 pickup Emission Vehicles in 50 States
Legal for use on 65-67 C30 pickup Emission Vehicles in 50 States
Chevrolet C30 Pickup 1967 5.3L / 327 / V8
4.6L / 283 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
Legal for use on 66-67 C30 pickup Emission Vehicles in 50 States
Legal for use on 65-67 C30 pickup Emission Vehicles in 50 States
Chevrolet C30 Pickup 1968 5.4L / 327 / V8
5.3L / 327 / V8
5.0L / 307 / V8
Installation requires welding/modification to exhaust system.
Use big block flapper valve for smog legal applications.
Replacement spark plug wire and/or boot included.
Uncoated
Legal for use on 68-69 C30 pickup Emission Vehicles in 49 States
Not Legal for use on 68-69 C30 pickup Emission Vehicles in California
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
without Smog Pump
CARB Executive Order D-57-33
Chevrolet C30 Pickup 1969 5.3L / 327 / V8
5.0L / 307 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system.
Use big block flapper valve for smog legal applications.
Replacement spark plug wire and/or boot included.
Uncoated
Legal for use on 68-69 C30 pickup Emission Vehicles in 49 States
Not Legal for use on 68-69 C30 pickup Emission Vehicles in California
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
without Smog Pump
CARB Executive Order D-57-33
Chevrolet C30 Pickup 1970 5.0L / 307 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet C30 Pickup 1971 5.0L / 307 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet C30 Pickup 1972 5.0L / 307 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet C30 Pickup 1973 5.0L / 307 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet C30 Pickup 1974 5.7L / 350 / V8 Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet C30 1975 5.7L / 350 / V8 Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet C30 1976 5.7L / 350 / V8
6.6L / 400 / V8
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Legal for use on C30 Emission Vehicles in 49 States
Not Legal for use on 76-80 C30 Emission Vehicles in California
Chevrolet C30 1977 5.7L / 350 / V8
6.6L / 400 / V8
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Legal for use on C30 Emission Vehicles in 49 States
Not Legal for use on 76-80 C30 Emission Vehicles in California
Chevrolet C30 1978 5.0L / 305 / V8
5.7L / 350 / V8
6.6L / 400 / V8
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Legal for use on C30 Emission Vehicles in 49 States
Not Legal for use on 76-80 C30 Emission Vehicles in California
Chevrolet C30 1979 5.7L / 350 / V8 Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet C30 1980 5.7L / 350 / V8 Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet C30 1981 5.7L / 350 / V8 Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet C30 1982 5.7L / 350 / V8 Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet C30 1983 5.7L / 350 / V8 Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet C30 1984 5.7L / 350 / V8 Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet C30 1985 5.7L / 350 / V8 Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet C30 1986 5.7L / 350 / V8 Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet C35 1983 5.7L / 350 / V8 Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet C35 1984 5.7L / 350 / V8 Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet C35 1985 5.7L / 350 / V8 Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet C35 1986 5.7L / 350 / V8 Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet Chevelle 1964 4.6L / 283 / V8
5.3L / 327 / V8
Installation requires welding/modification to exhaust system.
Use big block flapper valve for smog legal applications.
Replacement spark plug wire and/or boot included.
Automatic transmission only.
For use with straight plug heads only.
Uncoated
without Smog Pump
Legal for use on 64-67 Chevelle Emission Vehicles in 50 States
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Legal for use on 67-67 Chevelle Emission Vehicles in 50 States
Chevrolet Chevelle 1965 4.6L / 283 / V8
5.3L / 327 / V8
Installation requires welding/modification to exhaust system.
Use big block flapper valve for smog legal applications.
Replacement spark plug wire and/or boot included.
Automatic transmission only.
For use with straight plug heads only.
Uncoated
without Smog Pump
Legal for use on 64-67 Chevelle Emission Vehicles in 50 States
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Legal for use on 67-67 Chevelle Emission Vehicles in 50 States
Chevrolet Chevelle 1966 4.6L / 283 / V8
5.3L / 327 / V8
Installation requires welding/modification to exhaust system.
Use big block flapper valve for smog legal applications.
Replacement spark plug wire and/or boot included.
Automatic transmission only.
For use with straight plug heads only.
Uncoated
without Smog Pump
Legal for use on 64-67 Chevelle Emission Vehicles in 50 States
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Legal for use on 67-67 Chevelle Emission Vehicles in 50 States
Chevrolet Chevelle 1967 4.6L / 283 / V8
5.3L / 327 / V8
Installation requires welding/modification to exhaust system.
Use big block flapper valve for smog legal applications.
Replacement spark plug wire and/or boot included.
Automatic transmission only.
For use with straight plug heads only.
Uncoated
without Smog Pump
Legal for use on 64-67 Chevelle Emission Vehicles in 50 States
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Legal for use on 67-67 Chevelle Emission Vehicles in 50 States
Chevrolet Chevelle 1968 5.3L / 327 / V8
5.0L / 307 / V8
Installation requires welding/modification to exhaust system.
Use big block flapper valve for smog legal applications.
Replacement spark plug wire and/or boot included.
Uncoated
Legal for use on 1968 Chevelle Emission Vehicles in 49 States
Not Legal for use on 1968 Chevelle Emission Vehicles in California
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Automatic transmission only.
For use with straight plug heads only.
without Smog Pump
CARB Executive Order D-57-33
Chevrolet Chevelle 1969 5.0L / 307 / V8
5.7L / 350 / V8
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Automatic transmission only.
For use with straight plug heads only.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet Chevelle 1970 5.0L / 307 / V8
7.4L / 454 / V8
5.7L / 350 / V8
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Automatic transmission only.
For use with straight plug heads only.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Legal for use on 70-73 Chevelle Emission Vehicles in 49 States
Not Legal for use on 70-73 Chevelle Emission Vehicles in California
Chevrolet Chevelle 1971 5.0L / 307 / V8
7.4L / 454 / V8
5.7L / 350 / V8
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Automatic transmission only.
For use with straight plug heads only.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Legal for use on 70-73 Chevelle Emission Vehicles in 49 States
Not Legal for use on 70-73 Chevelle Emission Vehicles in California
Chevrolet Chevelle 1972 5.0L / 307 / V8
7.4L / 454 / V8
5.7L / 350 / V8
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Automatic transmission only.
For use with straight plug heads only.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Legal for use on 70-73 Chevelle Emission Vehicles in 49 States
Not Legal for use on 70-73 Chevelle Emission Vehicles in California
Chevrolet Chevelle 1973 5.0L / 307 / V8
5.7L / 350 / V8
7.4L / 454 / V8
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Automatic transmission only.
For use with straight plug heads only.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Legal for use on 70-73 Chevelle Emission Vehicles in 49 States
Not Legal for use on 70-73 Chevelle Emission Vehicles in California
Chevrolet El Camino 1964 4.6L / 283 / V8
5.3L / 327 / V8
Installation requires welding/modification to exhaust system.
Use big block flapper valve for smog legal applications.
Replacement spark plug wire and/or boot included.
Automatic transmission only.
For use with straight plug heads only.
Uncoated
without Smog Pump
Legal for use on 64-67 El Camino Emission Vehicles in 50 States
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Legal for use on 64-67 El Camino Emission Vehicles in 50
Chevrolet El Camino 1965 4.6L / 283 / V8
5.3L / 327 / V8
Installation requires welding/modification to exhaust system.
Use big block flapper valve for smog legal applications.
Replacement spark plug wire and/or boot included.
Automatic transmission only.
For use with straight plug heads only.
Uncoated
without Smog Pump
Legal for use on 64-67 El Camino Emission Vehicles in 50 States
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Legal for use on 64-67 El Camino Emission Vehicles in 50
Chevrolet El Camino 1966 4.6L / 283 / V8
5.3L / 327 / V8
Installation requires welding/modification to exhaust system.
Use big block flapper valve for smog legal applications.
Replacement spark plug wire and/or boot included.
Automatic transmission only.
For use with straight plug heads only.
Uncoated
without Smog Pump
Legal for use on 64-67 El Camino Emission Vehicles in 50 States
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Legal for use on 64-67 El Camino Emission Vehicles in 50
Chevrolet El Camino 1967 4.6L / 283 / V8
5.3L / 327 / V8
Installation requires welding/modification to exhaust system.
Use big block flapper valve for smog legal applications.
Replacement spark plug wire and/or boot included.
Automatic transmission only.
For use with straight plug heads only.
Uncoated
without Smog Pump
Legal for use on 64-67 El Camino Emission Vehicles in 50 States
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Legal for use on 64-67 El Camino Emission Vehicles in 50
Chevrolet El Camino 1968 5.4L / 327 / V8
5.3L / 327 / V8
5.0L / 307 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system.
Replacement spark plug wire and/or boot included.
Uncoated
Legal for use on 68-69 El Camino Emission Vehicles in 49 States
Not Legal for use on 68-69 El Camino Emission Vehicles in California
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Automatic transmission only.
For use with straight plug heads only.
without Smog Pump
CARB Executive Order D-57-33
Chevrolet El Camino 1969 5.3L / 327 / V8
5.0L / 307 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system.
Replacement spark plug wire and/or boot included.
Uncoated
Legal for use on 68-69 El Camino Emission Vehicles in 49 States
Not Legal for use on 68-69 El Camino Emission Vehicles in California
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Automatic transmission only.
For use with straight plug heads only.
without Smog Pump
CARB Executive Order D-57-33
Chevrolet El Camino 1970 5.0L / 307 / V8
6.6L / 400 / V8
5.7L / 350 / V8
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Automatic transmission only.
For use with straight plug heads only.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Legal for use on 70-76 El Camino Emission Vehicles in 49 States
Not Legal for use on 70-76 El Camino Emission Vehicles in California
Chevrolet El Camino 1971 5.0L / 307 / V8
6.6L / 400 / V8
5.7L / 350 / V8
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Automatic transmission only.
For use with straight plug heads only.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Legal for use on 70-76 El Camino Emission Vehicles in 49 States
Not Legal for use on 70-76 El Camino Emission Vehicles in California
Chevrolet El Camino 1972 5.0L / 307 / V8
6.6L / 400 / V8
5.7L / 350 / V8
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Automatic transmission only.
For use with straight plug heads only.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Legal for use on 70-76 El Camino Emission Vehicles in 49 States
Not Legal for use on 70-76 El Camino Emission Vehicles in California
Chevrolet El Camino 1973 5.0L / 307 / V8
6.6L / 400 / V8
5.7L / 350 / V8
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Automatic transmission only.
For use with straight plug heads only.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Legal for use on 70-76 El Camino Emission Vehicles in 49 States
Not Legal for use on 70-76 El Camino Emission Vehicles in California
Chevrolet El Camino 1974 6.6L / 400 / V8
5.7L / 350 / V8
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Automatic transmission only.
For use with straight plug heads only.
Uncoated
without Smog Pump
Legal for use on 70-76 El Camino Emission Vehicles in 49 States
Not Legal for use on 70-76 El Camino Emission Vehicles in California
CARB Executive Order D-57-33
Chevrolet El Camino 1975 6.6L / 400 / V8
5.7L / 350 / V8
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Automatic transmission only.
For use with straight plug heads only.
Uncoated
without Smog Pump
Legal for use on 70-76 El Camino Emission Vehicles in 49 States
Not Legal for use on 70-76 El Camino Emission Vehicles in California
CARB Executive Order D-57-33
Chevrolet El Camino 1976 5.0L / 305 / V8
6.6L / 400 / V8
5.7L / 350 / V8
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Automatic transmission only.
For use with straight plug heads only.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Legal for use on 70-76 El Camino Emission Vehicles in 49 States
Not Legal for use on 70-76 El Camino Emission Vehicles in California
Chevrolet El Camino 1977 5.0L / 305 / V8
5.7L / 350 / V8
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Automatic transmission only.
For use with straight plug heads only.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet El Camino 1978 5.0L / 305 / V8
5.7L / 350 / V8
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Automatic transmission only.
For use with straight plug heads only.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet El Camino 1979 5.0L / 305 / V8
5.7L / 350 / V8
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Automatic transmission only.
For use with straight plug heads only.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet El Camino 1980 5.0L / 305 / V8 Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Automatic transmission only.
For use with straight plug heads only.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet El Camino 1981 5.0L / 305 / V8 Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Automatic transmission only.
For use with straight plug heads only.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet El Camino 1982 5.0L / 305 / V8 Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Automatic transmission only.
For use with straight plug heads only.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet El Camino 1983 5.0L / 305 / V8 Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Automatic transmission only.
For use with straight plug heads only.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet El Camino 1984 5.0L / 305 / V8 Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Automatic transmission only.
For use with straight plug heads only.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet El Camino 1985 5.0L / 305 / V8 Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Automatic transmission only.
For use with straight plug heads only.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet El Camino 1986 5.0L / 305 / V8 Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Automatic transmission only.
For use with straight plug heads only.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet El Camino 1987 5.0L / 305 / V8 Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Automatic transmission only.
For use with straight plug heads only.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet K10 Pickup 1965 4.6L / 283 / V8 Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
Legal for use on 65-67 K10 pickup Emission Vehicles in 50 States
Chevrolet K10 Pickup 1966 5.3L / 327 / V8
4.6L / 283 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
Legal for use on 66-67 K10 pickup Emission Vehicles in 50 States
Legal for use on 65-67 K10 pickup Emission Vehicles in 50 States
Chevrolet K10 Pickup 1967 5.3L / 327 / V8
4.6L / 283 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
Legal for use on 66-67 K10 pickup Emission Vehicles in 50 States
Legal for use on 65-67 K10 pickup Emission Vehicles in 50 States
Chevrolet K10 Pickup 1968 5.4L / 327 / V8
5.3L / 327 / V8
5.0L / 307 / V8
Installation requires welding/modification to exhaust system.
Use big block flapper valve for smog legal applications.
Replacement spark plug wire and/or boot included.
Uncoated
Legal for use on 68-69 K10 pickup Emission Vehicles in 49 States
Not Legal for use on 68-69 K10 pickup Emission Vehicles in California
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
without Smog Pump
CARB Executive Order D-57-33
Chevrolet K10 Pickup 1969 5.3L / 327 / V8
5.7L / 350 / V8
5.0L / 307 / V8
Installation requires welding/modification to exhaust system.
Use big block flapper valve for smog legal applications.
Replacement spark plug wire and/or boot included.
Uncoated
Legal for use on 68-69 K10 pickup Emission Vehicles in 49 States
Not Legal for use on 68-69 K10 pickup Emission Vehicles in California
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
without Smog Pump
CARB Executive Order D-57-33
Chevrolet K10 Pickup 1970 5.7L / 350 / V8
5.0L / 307 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet K10 Pickup 1971 5.7L / 350 / V8
5.0L / 307 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet K10 Pickup 1972 5.7L / 350 / V8
5.0L / 307 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet K10 Pickup 1973 5.7L / 350 / V8
5.0L / 307 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet K10 Pickup 1974 5.7L / 350 / V8 Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet K10 Suburban 1967 4.6L / 283 / V8
5.3L / 327 / V8
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
Legal for use on 1967 K10 Suburban Emission Vehicles in 50 States
Chevrolet K10 Suburban 1968 5.4L / 327 / V8
5.3L / 327 / V8
5.0L / 307 / V8
Installation requires welding/modification to exhaust system.
Use big block flapper valve for smog legal applications.
Replacement spark plug wire and/or boot included.
Uncoated
Legal for use on 68-69 K10 Suburban Emission Vehicles in 49 States
Not Legal for use on 68-69 K10 Suburban Emission Vehicles in California
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
without Smog Pump
CARB Executive Order D-57-33
Chevrolet K10 Suburban 1969 5.3L / 327 / V8
5.0L / 307 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system.
Use big block flapper valve for smog legal applications.
Replacement spark plug wire and/or boot included.
Uncoated
Legal for use on 68-69 K10 Suburban Emission Vehicles in 49 States
Not Legal for use on 68-69 K10 Suburban Emission Vehicles in California
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
without Smog Pump
CARB Executive Order D-57-33
Chevrolet K10 Suburban 1970 5.0L / 307 / V8
5.7L / 350 / V8
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet K10 Suburban 1971 5.0L / 307 / V8
5.7L / 350 / V8
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet K10 Suburban 1972 5.0L / 307 / V8
5.7L / 350 / V8
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet K10 Suburban 1973 5.0L / 307 / V8
5.7L / 350 / V8
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet K10 Suburban 1974 5.7L / 350 / V8 Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet K10 Suburban 1975 6.6L / 400 / V8
5.7L / 350 / V8
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
Legal for use on 75-79 K10 Suburban Emission Vehicles in 49 States
Not Legal for use on 75-79 K10 Suburban Emission Vehicles in California
CARB Executive Order D-57-33
Chevrolet K10 Suburban 1976 6.6L / 400 / V8
5.7L / 350 / V8
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
Legal for use on 75-79 K10 Suburban Emission Vehicles in 49 States
Not Legal for use on 75-79 K10 Suburban Emission Vehicles in California
CARB Executive Order D-57-33
Chevrolet K10 Suburban 1977 5.0L / 305 / V8
6.6L / 400 / V8
5.7L / 350 / V8
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Legal for use on 75-79 K10 Suburban Emission Vehicles in 49 States
Not Legal for use on 75-79 K10 Suburban Emission Vehicles in California
Chevrolet K10 Suburban 1978 5.0L / 305 / V8
6.6L / 400 / V8
5.7L / 350 / V8
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Legal for use on 75-79 K10 Suburban Emission Vehicles in 49 States
Not Legal for use on 75-79 K10 Suburban Emission Vehicles in California
Chevrolet K10 Suburban 1979 5.0L / 305 / V8
6.6L / 400 / V8
5.7L / 350 / V8
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Legal for use on 75-79 K10 Suburban Emission Vehicles in 49 States
Not Legal for use on 75-79 K10 Suburban Emission Vehicles in California
Chevrolet K10 Suburban 1980 5.7L / 350 / V8 Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet K10 Suburban 1981 5.0L / 305 / V8
5.7L / 350 / V8
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet K10 Suburban 1982 5.7L / 350 / V8 Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet K10 Suburban 1983 5.0L / 305 / V8
5.7L / 350 / V8
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet K10 Suburban 1984 5.7L / 350 / V8 Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet K10 Suburban 1985 5.7L / 350 / V8 Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet K10 Suburban 1986 5.0L / 305 / V8
5.7L / 350 / V8
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet K10 1975 5.7L / 350 / V8 Installation requires welding/modification to exhaust system.
Use big block flapper valve for smog legal applications. valve required
Replacement spark plug wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet K10 1976 5.7L / 350 / V8 Installation requires welding/modification to exhaust system.
Use big block flapper valve for smog legal applications. valve required
Replacement spark plug wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet K10 1977 5.0L / 305 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system.
Use big block flapper valve for smog legal applications. Valve
Replacement spark plug wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Use big block flapper valve for smog legal applications. valve required
Chevrolet K10 1978 5.0L / 305 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system.
Use big block flapper valve for smog legal applications. Valve
Replacement spark plug wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Use big block flapper valve for smog legal applications. valve required
Chevrolet K10 1979 5.7L / 350 / V8 Installation requires welding/modification to exhaust system.
Use big block flapper valve for smog legal applications. valve required
Replacement spark plug wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet K10 1980 5.7L / 350 / V8 Installation requires welding/modification to exhaust system.
Use big block flapper valve for smog legal applications. valve required
Replacement spark plug wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet K10 1981 5.0L / 305 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system.
Use big block flapper valve for smog legal applications. Valve
Replacement spark plug wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Use big block flapper valve for smog legal applications. valve required
Chevrolet K10 1982 5.0L / 305 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system.
Use big block flapper valve for smog legal applications. Valve
Replacement spark plug wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Use big block flapper valve for smog legal applications. valve required
Chevrolet K10 1983 5.0L / 305 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system.
Use big block flapper valve for smog legal applications. Valve
Replacement spark plug wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Use big block flapper valve for smog legal applications. valve required
Chevrolet K10 1984 5.0L / 305 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system.
Use big block flapper valve for smog legal applications. Valve
Replacement spark plug wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Use big block flapper valve for smog legal applications. valve required
Chevrolet K10 1985 5.0L / 305 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system.
Use big block flapper valve for smog legal applications. Valve
Replacement spark plug wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Use big block flapper valve for smog legal applications. valve required
Chevrolet K10 1986 5.0L / 305 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system.
Use big block flapper valve for smog legal applications. Valve
Replacement spark plug wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Use big block flapper valve for smog legal applications. valve required
Chevrolet K20 Pickup 1965 4.6L / 283 / V8 Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
Legal for use on 65-67 K20 pickup Emission Vehicles in 50 States
Chevrolet K20 Pickup 1966 5.3L / 327 / V8
4.6L / 283 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
Legal for use on 66-67 K20 pickup Emission Vehicles in 50 States
Legal for use on 65-67 K20 pickup Emission Vehicles in 50 States
Chevrolet K20 Pickup 1967 5.3L / 327 / V8
4.6L / 283 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
Legal for use on 66-67 K20 pickup Emission Vehicles in 50 States
Legal for use on 65-67 K20 pickup Emission Vehicles in 50 States
Chevrolet K20 Pickup 1968 5.4L / 327 / V8
5.3L / 327 / V8
5.0L / 307 / V8
Installation requires welding/modification to exhaust system.
Use big block flapper valve for smog legal applications.
Replacement spark plug wire and/or boot included.
Uncoated
Legal for use on 68-69 K20 pickup Emission Vehicles in 49 States
Not Legal for use on 68-69 K20 pickup Emission Vehicles in California
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
without Smog Pump
CARB Executive Order D-57-33
Chevrolet K20 Pickup 1969 5.3L / 327 / V8
5.0L / 307 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system.
Use big block flapper valve for smog legal applications.
Replacement spark plug wire and/or boot included.
Uncoated
Legal for use on 68-69 K20 pickup Emission Vehicles in 49 States
Not Legal for use on 68-69 K20 pickup Emission Vehicles in California
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
without Smog Pump
CARB Executive Order D-57-33
Chevrolet K20 Pickup 1970 5.0L / 307 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet K20 Pickup 1971 5.0L / 307 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet K20 Pickup 1972 5.0L / 307 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet K20 Pickup 1973 5.0L / 307 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet K20 Pickup 1974 5.7L / 350 / V8 Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet K20 Suburban 1967 4.6L / 283 / V8
5.3L / 327 / V8
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
Legal for use on 1967 K20 Suburban Emission Vehicles in 50 States
Chevrolet K20 Suburban 1968 5.4L / 327 / V8
5.3L / 327 / V8
5.0L / 307 / V8
Installation requires welding/modification to exhaust system.
Use big block flapper valve for smog legal applications.
Replacement spark plug wire and/or boot included.
Uncoated
Legal for use on K20 Suburban Emission Vehicles in 49 States
Not Legal for use on 68-69 K20 Suburban Emission Vehicles in California
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
without Smog Pump
CARB Executive Order D-57-33
Chevrolet K20 Suburban 1969 5.3L / 327 / V8
5.7L / 350 / V8
5.0L / 307 / V8
Installation requires welding/modification to exhaust system.
Use big block flapper valve for smog legal applications.
Replacement spark plug wire and/or boot included.
Uncoated
Legal for use on K20 Suburban Emission Vehicles in 49 States
Not Legal for use on 68-69 K20 Suburban Emission Vehicles in California
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
without Smog Pump
CARB Executive Order D-57-33
Chevrolet K20 Suburban 1970 5.7L / 350 / V8
5.0L / 307 / V8
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet K20 Suburban 1971 5.7L / 350 / V8
5.0L / 307 / V8
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet K20 Suburban 1972 5.7L / 350 / V8
5.0L / 307 / V8
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet K20 Suburban 1973 5.7L / 350 / V8
5.0L / 307 / V8
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet K20 Suburban 1974 5.7L / 350 / V8 Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet K20 Suburban 1975 5.7L / 350 / V8
6.6L / 400 / V8
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Legal for use on K20 Suburban Emission Vehicles in 49 States
Not Legal for use on 75-80 K20 Suburban Emission Vehicles in California
Chevrolet K20 Suburban 1976 5.7L / 350 / V8
6.6L / 400 / V8
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Legal for use on K20 Suburban Emission Vehicles in 49 States
Not Legal for use on 75-80 K20 Suburban Emission Vehicles in California
Chevrolet K20 Suburban 1977 5.7L / 350 / V8
5.0L / 305 / V8
6.6L / 400 / V8
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Legal for use on K20 Suburban Emission Vehicles in 49 States
Not Legal for use on 75-80 K20 Suburban Emission Vehicles in California
Chevrolet K20 Suburban 1978 5.7L / 350 / V8
5.0L / 305 / V8
6.6L / 400 / V8
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Legal for use on K20 Suburban Emission Vehicles in 49 States
Not Legal for use on 75-80 K20 Suburban Emission Vehicles in California
Chevrolet K20 Suburban 1979 5.7L / 350 / V8
6.6L / 400 / V8
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Legal for use on K20 Suburban Emission Vehicles in 49 States
Not Legal for use on 75-80 K20 Suburban Emission Vehicles in California
Chevrolet K20 Suburban 1980 5.7L / 350 / V8
6.6L / 400 / V8
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Legal for use on K20 Suburban Emission Vehicles in 49 States
Not Legal for use on 75-80 K20 Suburban Emission Vehicles in California
Chevrolet K20 Suburban 1981 5.7L / 350 / V8 Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet K20 Suburban 1982 5.7L / 350 / V8 Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet K20 Suburban 1983 5.7L / 350 / V8 Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet K20 Suburban 1984 5.7L / 350 / V8 Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet K20 Suburban 1985 5.7L / 350 / V8 Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet K20 Suburban 1986 5.7L / 350 / V8 Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet K20 1975 6.6L / 400 / V8
5.7L / 350 / V8
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
Legal for use on 75-80 K20 Emission Vehicles in 49 States
Not Legal for use on 75-80 K20 Emission Vehicles in California
CARB Executive Order D-57-33
Chevrolet K20 1976 6.6L / 400 / V8
5.7L / 350 / V8
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
Legal for use on 75-80 K20 Emission Vehicles in 49 States
Not Legal for use on 75-80 K20 Emission Vehicles in California
CARB Executive Order D-57-33
Chevrolet K20 1977 6.6L / 400 / V8
5.7L / 350 / V8
5.0L / 305 / V8
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
Legal for use on 75-80 K20 Emission Vehicles in 49 States
Not Legal for use on 75-80 K20 Emission Vehicles in California
CARB Executive Order D-57-33
Chevrolet K20 1978 6.6L / 400 / V8
5.7L / 350 / V8
5.0L / 305 / V8
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
Legal for use on 75-80 K20 Emission Vehicles in 49 States
Not Legal for use on 75-80 K20 Emission Vehicles in California
CARB Executive Order D-57-33
Chevrolet K20 1979 6.6L / 400 / V8
5.7L / 350 / V8
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
Legal for use on 75-80 K20 Emission Vehicles in 49 States
Not Legal for use on 75-80 K20 Emission Vehicles in California
CARB Executive Order D-57-33
Chevrolet K20 1980 6.6L / 400 / V8
5.7L / 350 / V8
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
Legal for use on 75-80 K20 Emission Vehicles in 49 States
Not Legal for use on 75-80 K20 Emission Vehicles in California
CARB Executive Order D-57-33
Chevrolet K20 1981 5.7L / 350 / V8 Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet K20 1982 5.7L / 350 / V8 Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet K20 1983 5.7L / 350 / V8 Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet K20 1984 5.7L / 350 / V8 Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet K20 1985 5.7L / 350 / V8
5.0L / 305 / V8
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet K20 1986 5.7L / 350 / V8 Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet K30 Pickup 1968 5.4L / 327 / V8
5.3L / 327 / V8
5.0L / 307 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
Legal for use on K30 pickup Emission Vehicles in 49 States
Not Legal for use on K30 pickup Emission Vehicles in California
CARB Executive Order D-57-33
Chevrolet K30 Pickup 1969 5.3L / 327 / V8
5.7L / 350 / V8
5.0L / 307 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
Legal for use on K30 pickup Emission Vehicles in 49 States
Not Legal for use on K30 pickup Emission Vehicles in California
CARB Executive Order D-57-33
Chevrolet K30 Pickup 1970 5.7L / 350 / V8
5.0L / 307 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet K30 Pickup 1971 5.7L / 350 / V8
5.0L / 307 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet K30 Pickup 1972 5.7L / 350 / V8
5.0L / 307 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet K30 Pickup 1973 5.7L / 350 / V8
5.0L / 307 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet K30 Pickup 1974 5.7L / 350 / V8 Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet K30 1977 5.7L / 350 / V8
6.6L / 400 / V8
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Legal for use on K30 Emission Vehicles in 49 States
Not Legal for use on K30 Emission Vehicles in California
Chevrolet K30 1978 5.7L / 350 / V8
6.6L / 400 / V8
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Legal for use on K30 Emission Vehicles in 49 States
Not Legal for use on K30 Emission Vehicles in California
Chevrolet K30 1979 5.7L / 350 / V8
6.6L / 400 / V8
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Legal for use on K30 Emission Vehicles in 49 States
Not Legal for use on K30 Emission Vehicles in California
Chevrolet K30 1980 5.7L / 350 / V8
6.6L / 400 / V8
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Legal for use on K30 Emission Vehicles in 49 States
Not Legal for use on K30 Emission Vehicles in California
Chevrolet K30 1981 5.7L / 350 / V8 Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet K30 1982 5.7L / 350 / V8 Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet K30 1983 5.7L / 350 / V8 Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet K30 1984 5.7L / 350 / V8 Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet K30 1985 5.7L / 350 / V8 Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet K30 1986 5.7L / 350 / V8 Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet K5 Blazer 1975 6.6L / 400 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
Legal for use on 75-79 K5 Blazer Emission Vehicles in 49 States
Not Legal for use on 75-79 K5 Blazer Emission Vehicles in California
Installation requires welding/modification to exhaust system.
CARB Executive Order D-57-33
Chevrolet K5 Blazer 1976 6.6L / 400 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
Legal for use on 75-79 K5 Blazer Emission Vehicles in 49 States
Not Legal for use on 75-79 K5 Blazer Emission Vehicles in California
Installation requires welding/modification to exhaust system.
CARB Executive Order D-57-33
Chevrolet K5 Blazer 1977 6.6L / 400 / V8
5.0L / 305 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
Legal for use on 75-79 K5 Blazer Emission Vehicles in 49 States
Not Legal for use on 75-79 K5 Blazer Emission Vehicles in California
CARB Executive Order D-57-33
Installation requires welding/modification to exhaust system.
Chevrolet K5 Blazer 1978 6.6L / 400 / V8
5.0L / 305 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
Legal for use on 75-79 K5 Blazer Emission Vehicles in 49 States
Not Legal for use on 75-79 K5 Blazer Emission Vehicles in California
CARB Executive Order D-57-33
Installation requires welding/modification to exhaust system.
Chevrolet K5 Blazer 1979 6.6L / 400 / V8
5.0L / 305 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
Legal for use on 75-79 K5 Blazer Emission Vehicles in 49 States
Not Legal for use on 75-79 K5 Blazer Emission Vehicles in California
CARB Executive Order D-57-33
Installation requires welding/modification to exhaust system.
Chevrolet K5 Blazer 1980 5.0L / 305 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Installation requires welding/modification to exhaust system.
Chevrolet K5 Blazer 1981 5.0L / 305 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Installation requires welding/modification to exhaust system.
Chevrolet K5 Blazer 1982 5.0L / 305 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Installation requires welding/modification to exhaust system.
Chevrolet K5 Blazer 1983 5.0L / 305 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Installation requires welding/modification to exhaust system.
Chevrolet K5 Blazer 1984 5.0L / 305 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Installation requires welding/modification to exhaust system.
Chevrolet K5 Blazer 1985 5.0L / 305 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Installation requires welding/modification to exhaust system.
Chevrolet K5 Blazer 1986 5.0L / 305 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Installation requires welding/modification to exhaust system.
Chevrolet Malibu 1975 5.7L / 350 / V8 Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Automatic transmission only.
For use with straight plug heads only.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Legal for use on Malibu Emission Vehicles in 49 States
Not Legal for use on 73-76 Malibu Emission Vehicles in California
Chevrolet Malibu 1978 5.7L / 350 / V8
5.0L / 305 / V8
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Automatic transmission only.
For use with straight plug heads only.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet Malibu 1979 5.7L / 350 / V8
5.0L / 305 / V8
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Automatic transmission only.
For use with straight plug heads only.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet Malibu 1980 5.7L / 350 / V8
5.0L / 305 / V8
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Automatic transmission only.
For use with straight plug heads only.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet Malibu 1981 5.7L / 350 / V8
5.0L / 305 / V8
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Automatic transmission only.
For use with straight plug heads only.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet Malibu 1982 5.0L / 305 / V8 Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Automatic transmission only.
For use with straight plug heads only.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Chevrolet Malibu 1983 5.0L / 305 / V8 Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Automatic transmission only.
For use with straight plug heads only.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC C15 Suburban 1977 5.0L / 305 / V8 Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC C15 Suburban 1978 5.0L / 305 / V8 Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC C15/C1500 Pickup 1967 5.3L / 327 / V8
4.6L / 283 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
Legal for use on 1967 C15/C1500 pickup Emission Vehicles in 50 States
GMC C15/C1500 Pickup 1968 5.4L / 327 / V8
5.3L / 327 / V8
5.0L / 307 / V8
Installation requires welding/modification to exhaust system.
Use big block flapper valve for smog legal applications.
Replacement spark plug wire and/or boot included.
Uncoated
Legal for use on 1968 C15/C1500 pickup Emission Vehicles in 49 States
Not Legal for use on 1968 C15/C1500 pickup Emission Vehicles in California
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
without Smog Pump
CARB Executive Order D-57-33
GMC C15/C1500 Pickup 1969 5.0L / 307 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC C15/C1500 Pickup 1970 5.0L / 307 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC C15/C1500 Pickup 1971 5.0L / 307 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC C15/C1500 Pickup 1972 5.0L / 307 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC C15/C1500 Pickup 1973 5.0L / 307 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC C15/C1500 Pickup 1974 5.7L / 350 / V8 Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC C15/C1500 Suburban 1967 5.3L / 327 / V8
4.6L / 283 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
Legal for use on 1967 C15/C1500 Suburban Emission Vehicles in 50 States
GMC C15/C1500 Suburban 1968 5.4L / 327 / V8
5.3L / 327 / V8
5.0L / 307 / V8
Installation requires welding/modification to exhaust system.
Use big block flapper valve for smog legal applications.
Replacement spark plug wire and/or boot included.
Uncoated
Legal for use on 1968 C15/C1500 Suburban Emission Vehicles in 49 States
Not Legal for use on 1968 C15/C1500 Suburban Emission Vehicles in California
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
without Smog Pump
CARB Executive Order D-57-33
GMC C15/C1500 Suburban 1969 5.7L / 350 / V8
5.0L / 307 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC C15/C1500 Suburban 1970 5.7L / 350 / V8
5.0L / 307 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC C15/C1500 Suburban 1971 5.7L / 350 / V8
5.0L / 307 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC C15/C1500 Suburban 1972 5.7L / 350 / V8
5.0L / 307 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC C15/C1500 Suburban 1973 5.7L / 350 / V8
5.0L / 307 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC C15/C1500 Suburban 1974 5.7L / 350 / V8 Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC C1500 Suburban 1979 5.7L / 350 / V8
5.0L / 305 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC C1500 Suburban 1980 5.7L / 350 / V8 Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC C1500 Suburban 1981 5.7L / 350 / V8
5.0L / 305 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC C1500 Suburban 1982 5.7L / 350 / V8
5.0L / 305 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC C1500 Suburban 1983 5.7L / 350 / V8
5.0L / 305 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC C1500 Suburban 1984 5.7L / 350 / V8
5.0L / 305 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC C1500 Suburban 1985 5.7L / 350 / V8
5.0L / 305 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC C1500 Suburban 1986 5.7L / 350 / V8
5.0L / 305 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC C1500 1979 5.7L / 350 / V8
6.6L / 400 / V8
5.0L / 305 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Legal for use on 79-80 C1500 Emission Vehicles in 49 States
Not Legal for use on 79-80 C1500 Emission Vehicles in California
GMC C1500 1980 5.7L / 350 / V8
6.6L / 400 / V8
5.0L / 305 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Legal for use on 79-80 C1500 Emission Vehicles in 49 States
Not Legal for use on 79-80 C1500 Emission Vehicles in California
GMC C1500 1981 5.7L / 350 / V8
5.0L / 305 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC C1500 1982 5.7L / 350 / V8
5.0L / 305 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC C1500 1983 5.7L / 350 / V8
5.0L / 305 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC C1500 1984 5.7L / 350 / V8
5.0L / 305 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC C1500 1985 5.7L / 350 / V8
5.0L / 305 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC C1500 1986 5.7L / 350 / V8
5.0L / 305 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC C15 1975 5.7L / 350 / V8 Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC C15 1976 6.6L / 400 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
Legal for use on 76, 78 C15 Emission Vehicles in 49 States
Not Legal for use on 76, 78 C15 Emission Vehicles in California
CARB Executive Order D-57-33
GMC C15 1977 5.7L / 350 / V8
5.0L / 305 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC C15 1978 6.6L / 400 / V8
5.7L / 350 / V8
5.0L / 305 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
Legal for use on 76, 78 C15 Emission Vehicles in 49 States
Not Legal for use on 76, 78 C15 Emission Vehicles in California
CARB Executive Order D-57-33
GMC C25 Suburban 1975 5.7L / 350 / V8 Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC C25 Suburban 1976 5.7L / 350 / V8 Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC C25 Suburban 1977 5.7L / 350 / V8
5.0L / 305 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC C25 Suburban 1978 5.7L / 350 / V8
5.0L / 305 / V8
6.6L / 400 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Legal for use on 1978 C25 Suburban Emission Vehicles in 49 States
Not Legal for use on 1978 C25 Suburban Emission Vehicles in California
GMC C25/C2500 Pickup 1967 4.6L / 283 / V8
5.3L / 327 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
Legal for use on 1967 C25/C2500 pickup Emission Vehicles in 50 States
GMC C25/C2500 Pickup 1968 5.0L / 307 / V8 Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC C25/C2500 Pickup 1969 5.7L / 350 / V8
5.0L / 307 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC C25/C2500 Pickup 1970 5.7L / 350 / V8
5.0L / 307 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC C25/C2500 Pickup 1971 5.7L / 350 / V8
5.0L / 307 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC C25/C2500 Pickup 1972 5.7L / 350 / V8
5.0L / 307 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC C25/C2500 Pickup 1973 5.7L / 350 / V8
5.0L / 307 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC C25/C2500 Pickup 1974 5.7L / 350 / V8 Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC C25/C2500 Suburban 1967 5.3L / 327 / V8
4.6L / 283 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
Legal for use on 1967 C25/2500 Suburban Emission Vehicles in 50 States
Legal for use on 1967 C25/C2500 Suburban Emission Vehicles in 50 States
GMC C25/C2500 Suburban 1968 5.4L / 327 / V8
5.3L / 327 / V8
5.0L / 307 / V8
Installation requires welding/modification to exhaust system.
Use big block flapper valve for smog legal applications.
Replacement spark plug wire and/or boot included.
Uncoated
Legal for use on 1968 C25/2500 Suburban Emission Vehicles in 49 States
Not Legal for use on 1968 C25/2500 Suburban Emission Vehicles in California
Legal for use on 1968 C25/C2500 pickup Emission Vehicles in 49 States
Not Legal for use on 1968 C25/C2500 pickup Emission Vehicles in California
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
without Smog Pump
CARB Executive Order D-57-33
GMC C25/C2500 Suburban 1969 5.7L / 350 / V8
5.0L / 307 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC C25/C2500 Suburban 1970 5.7L / 350 / V8
5.0L / 307 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC C25/C2500 Suburban 1971 5.7L / 350 / V8
5.0L / 307 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC C25/C2500 Suburban 1972 5.7L / 350 / V8
5.0L / 307 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC C25/C2500 Suburban 1973 5.7L / 350 / V8
5.0L / 307 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC C25/C2500 Suburban 1974 5.7L / 350 / V8 Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC C2500 Suburban 1979 5.7L / 350 / V8 Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC C2500 Suburban 1980 5.7L / 350 / V8
6.6L / 400 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Legal for use on 1980 C2500 Suburban Emission Vehicles in 49 States
Not Legal for use on 1980 C2500 Suburban Emission Vehicles in California
GMC C2500 Suburban 1981 5.7L / 350 / V8 Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC C2500 Suburban 1982 5.0L / 305 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC C2500 Suburban 1983 5.0L / 305 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC C2500 Suburban 1984 5.0L / 305 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC C2500 Suburban 1985 5.0L / 305 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC C2500 Suburban 1986 5.0L / 305 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC C2500 1979 5.7L / 350 / V8
6.6L / 400 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Legal for use on 1979 C2500 Emission Vehicles in 49 States
Not Legal for use on 1979 C2500 Emission Vehicles in California
GMC C2500 1980 5.7L / 350 / V8
5.0L / 305 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC C2500 1981 5.7L / 350 / V8
5.0L / 305 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC C2500 1982 5.7L / 350 / V8
5.0L / 305 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC C2500 1983 5.7L / 350 / V8
5.0L / 305 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC C2500 1984 5.7L / 350 / V8
5.0L / 305 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC C2500 1985 5.7L / 350 / V8
5.0L / 305 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC C2500 1986 5.7L / 350 / V8
5.0L / 305 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC C25 1975 5.7L / 350 / V8 Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC C25 1976 5.7L / 350 / V8
6.6L / 400 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Legal for use on 76-78 C25 Emission Vehicles in 49 States
Not Legal for use on 76-78 C25 Emission Vehicles in California
GMC C25 1977 5.7L / 350 / V8
6.6L / 400 / V8
5.0L / 305 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Legal for use on 76-78 C25 Emission Vehicles in 49 States
Not Legal for use on 76-78 C25 Emission Vehicles in California
GMC C25 1978 5.7L / 350 / V8
6.6L / 400 / V8
5.0L / 305 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Legal for use on 76-78 C25 Emission Vehicles in 49 States
Not Legal for use on 76-78 C25 Emission Vehicles in California
GMC C35/C3500 Pickup 1967 4.6L / 283 / V8 Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
Legal for use on 1967 C35/C3500 pickup Emission Vehicles in 50 States
GMC C35/C3500 Pickup 1968 5.0L / 307 / V8 Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC C35/C3500 Pickup 1969 5.0L / 307 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC C35/C3500 Pickup 1970 5.0L / 307 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC C35/C3500 Pickup 1971 5.0L / 307 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC C35/C3500 Pickup 1972 5.0L / 307 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC C35/C3500 Pickup 1973 5.0L / 307 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC C35/C3500 Pickup 1974 5.7L / 350 / V8 Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC C3500 1979 6.6L / 400 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
Legal for use on 1979 C3500 Emission Vehicles in 49 States
Not Legal for use on 1979 C3500 Emission Vehicles in California
CARB Executive Order D-57-33
GMC C3500 1980 5.7L / 350 / V8 Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC C3500 1981 5.7L / 350 / V8 Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC C3500 1982 5.7L / 350 / V8 Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC C3500 1983 5.7L / 350 / V8 Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC C3500 1984 5.7L / 350 / V8 Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC C3500 1985 5.7L / 350 / V8 Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC C3500 1986 5.0L / 305 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC C35 1975 5.7L / 350 / V8 Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC C35 1976 6.6L / 400 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
Legal for use on 76-78 C35 Emission Vehicles in 49 States
Not Legal for use on 76-78 C35 Emission Vehicles in California
CARB Executive Order D-57-33
GMC C35 1977 6.6L / 400 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
Legal for use on 76-78 C35 Emission Vehicles in 49 States
Not Legal for use on 76-78 C35 Emission Vehicles in California
CARB Executive Order D-57-33
GMC C35 1978 6.6L / 400 / V8
5.0L / 305 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
Legal for use on 76-78 C35 Emission Vehicles in 49 States
Not Legal for use on 76-78 C35 Emission Vehicles in California
CARB Executive Order D-57-33
GMC Jimmy 1970 5.7L / 350 / V8 Installation requires welding/modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC Jimmy 1971 5.7L / 350 / V8 Installation requires welding/modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC Jimmy 1972 5.7L / 350 / V8 Installation requires welding/modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC Jimmy 1973 5.7L / 350 / V8 Installation requires welding/modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC Jimmy 1974 5.7L / 350 / V8 Installation requires welding/modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC Jimmy 1975 6.6L / 400 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system.
Use big block flapper valve for smog legal applications.
Replacement spark plug wire and/or boot included.
Uncoated
Legal for use on 75-79 Jimmy Emission Vehicles in 49 States
Not Legal for use on 75-79 Jimmy Emission Vehicles in California
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
without Smog Pump
CARB Executive Order D-57-33
GMC Jimmy 1976 6.6L / 400 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system.
Use big block flapper valve for smog legal applications.
Replacement spark plug wire and/or boot included.
Uncoated
Legal for use on 75-79 Jimmy Emission Vehicles in 49 States
Not Legal for use on 75-79 Jimmy Emission Vehicles in California
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
without Smog Pump
CARB Executive Order D-57-33
GMC Jimmy 1977 6.6L / 400 / V8
5.0L / 305 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system.
Use big block flapper valve for smog legal applications.
Replacement spark plug wire and/or boot included.
Uncoated
Legal for use on 75-79 Jimmy Emission Vehicles in 49 States
Not Legal for use on 75-79 Jimmy Emission Vehicles in California
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
without Smog Pump
CARB Executive Order D-57-33
GMC Jimmy 1978 6.6L / 400 / V8
5.0L / 305 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system.
Use big block flapper valve for smog legal applications.
Replacement spark plug wire and/or boot included.
Uncoated
Legal for use on 75-79 Jimmy Emission Vehicles in 49 States
Not Legal for use on 75-79 Jimmy Emission Vehicles in California
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
without Smog Pump
CARB Executive Order D-57-33
GMC Jimmy 1979 6.6L / 400 / V8
5.0L / 305 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system.
Use big block flapper valve for smog legal applications.
Replacement spark plug wire and/or boot included.
Uncoated
Legal for use on 75-79 Jimmy Emission Vehicles in 49 States
Not Legal for use on 75-79 Jimmy Emission Vehicles in California
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
without Smog Pump
CARB Executive Order D-57-33
GMC Jimmy 1980 5.0L / 305 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC Jimmy 1981 5.0L / 305 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC Jimmy 1982 5.0L / 305 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC Jimmy 1983 5.0L / 305 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC Jimmy 1984 5.0L / 305 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC Jimmy 1985 5.0L / 305 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC Jimmy 1986 5.0L / 305 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC K15 Suburban 1975 6.6L / 400 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC K15 Suburban 1976 5.7L / 350 / V8
6.6L / 400 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC K15 Suburban 1977 5.7L / 350 / V8
6.6L / 400 / V8
5.0L / 305 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC K15 Suburban 1978 5.7L / 350 / V8
6.6L / 400 / V8
5.0L / 305 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC K15/K1500 Pickup 1967 5.3L / 327 / V8
4.6L / 283 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
Legal for use on 1967 K15/K1500 Pickup Emission Vehicles in 50 States
GMC K15/K1500 Pickup 1968 5.4L / 327 / V8
5.3L / 327 / V8
5.0L / 307 / V8
Installation requires welding/modification to exhaust system.
Use big block flapper valve for smog legal applications.
Replacement spark plug wire and/or boot included.
Uncoated
Legal for use on 1968 K15/K1500 Pickup Emission Vehicles in 49 States
Not Legal for use on 1968 K15/K1500 Pickup Emission Vehicles in California
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
without Smog Pump
CARB Executive Order D-57-33
GMC K15/K1500 Pickup 1969 5.0L / 307 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC K15/K1500 Pickup 1970 5.0L / 307 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC K15/K1500 Pickup 1971 5.0L / 307 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC K15/K1500 Pickup 1972 5.0L / 307 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC K15/K1500 Pickup 1973 5.0L / 307 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC K15/K1500 Pickup 1974 5.7L / 350 / V8 Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC K15/K1500 Suburban 1967 4.6L / 283 / V8
5.3L / 327 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
Legal for use on 1967 K15/K1500 Suburban Emission Vehicles in 50 States
GMC K15/K1500 Suburban 1968 5.4L / 327 / V8
5.3L / 327 / V8
5.0L / 307 / V8
Installation requires welding/modification to exhaust system.
Use big block flapper valve for smog legal applications.
Replacement spark plug wire and/or boot included.
Uncoated
Legal for use on 1968 K15/K1500 Suburban Emission Vehicles in 49 States
Not Legal for use on 1968 K15/K1500 Suburban Emission Vehicles in California
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
without Smog Pump
CARB Executive Order D-57-33
GMC K15/K1500 Suburban 1969 5.0L / 307 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC K15/K1500 Suburban 1970 5.0L / 307 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC K15/K1500 Suburban 1971 5.0L / 307 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC K15/K1500 Suburban 1972 5.0L / 307 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC K15/K1500 Suburban 1973 5.0L / 307 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC K15/K1500 Suburban 1974 5.7L / 350 / V8 Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC K1500 Suburban 1979 6.6L / 400 / V8
5.7L / 350 / V8
5.0L / 305 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
Legal for use on 79-80 K1500 Suburban Emission Vehicles in 49 States
Not Legal for use on 79-80 K1500 Suburban Emission Vehicles in California
CARB Executive Order D-57-33
GMC K1500 Suburban 1980 6.6L / 400 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
Legal for use on 79-80 K1500 Suburban Emission Vehicles in 49 States
Not Legal for use on 79-80 K1500 Suburban Emission Vehicles in California
CARB Executive Order D-57-33
GMC K1500 Suburban 1981 5.7L / 350 / V8 Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC K1500 Suburban 1982 5.7L / 350 / V8
5.0L / 305 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC K1500 Suburban 1983 5.7L / 350 / V8 Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC K1500 Suburban 1984 5.7L / 350 / V8 Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC K1500 Suburban 1985 5.7L / 350 / V8 Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC K1500 Suburban 1986 5.7L / 350 / V8 Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC K1500 1979 6.6L / 400 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
Legal for use on 79-80 K1500 Emission Vehicles in 49 States
Not Legal for use on 79-80 K1500 Emission Vehicles in California
CARB Executive Order D-57-33
GMC K1500 1980 6.6L / 400 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
Legal for use on 79-80 K1500 Emission Vehicles in 49 States
Not Legal for use on 79-80 K1500 Emission Vehicles in California
CARB Executive Order D-57-33
GMC K1500 1981 5.0L / 305 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC K1500 1982 5.0L / 305 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC K1500 1983 5.0L / 305 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC K1500 1984 5.0L / 305 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC K1500 1985 5.0L / 305 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC K1500 1986 5.0L / 305 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC K15 1975 6.6L / 400 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system.
Use big block flapper valve for smog legal applications.
Replacement spark plug wire and/or boot included.
Uncoated
Legal for use on 75-78 K15 Emission Vehicles in 49 States
Not Legal for use on 75-78 K15 Emission Vehicles in California
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
without Smog Pump
CARB Executive Order D-57-33
GMC K15 1976 6.6L / 400 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system.
Use big block flapper valve for smog legal applications.
Replacement spark plug wire and/or boot included.
Uncoated
Legal for use on 75-78 K15 Emission Vehicles in 49 States
Not Legal for use on 75-78 K15 Emission Vehicles in California
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
without Smog Pump
CARB Executive Order D-57-33
GMC K15 1977 6.6L / 400 / V8
5.0L / 305 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system.
Use big block flapper valve for smog legal applications.
Replacement spark plug wire and/or boot included.
Uncoated
Legal for use on 75-78 K15 Emission Vehicles in 49 States
Not Legal for use on 75-78 K15 Emission Vehicles in California
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
without Smog Pump
CARB Executive Order D-57-33
GMC K15 1978 6.6L / 400 / V8
5.0L / 305 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system.
Use big block flapper valve for smog legal applications.
Replacement spark plug wire and/or boot included.
Uncoated
Legal for use on 75-78 K15 Emission Vehicles in 49 States
Not Legal for use on 75-78 K15 Emission Vehicles in California
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
without Smog Pump
CARB Executive Order D-57-33
GMC K25 Suburban 1975 5.7L / 350 / V8
6.6L / 400 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Legal for use on 75-78 K25 Suburban Emission Vehicles in 49 States
Not Legal for use on 75-78 K25 Suburban Emission Vehicles in California
GMC K25 Suburban 1976 5.7L / 350 / V8
6.6L / 400 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Legal for use on 75-78 K25 Suburban Emission Vehicles in 49 States
Not Legal for use on 75-78 K25 Suburban Emission Vehicles in California
GMC K25 Suburban 1977 5.0L / 305 / V8
5.7L / 350 / V8
6.6L / 400 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Legal for use on 75-78 K25 Suburban Emission Vehicles in 49 States
Not Legal for use on 75-78 K25 Suburban Emission Vehicles in California
GMC K25 Suburban 1978 5.0L / 305 / V8
5.7L / 350 / V8
6.6L / 400 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Legal for use on 75-78 K25 Suburban Emission Vehicles in 49 States
Not Legal for use on 75-78 K25 Suburban Emission Vehicles in California
GMC K25/K2500 Pickup 1967 4.6L / 283 / V8
5.3L / 327 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
Legal for use on K25/K2500 Pickup Emission Vehicles in 50 States
GMC K25/K2500 Pickup 1968 5.4L / 327 / V8
5.3L / 327 / V8
5.0L / 307 / V8
Installation requires welding/modification to exhaust system.
Use big block flapper valve for smog legal applications.
Replacement spark plug wire and/or boot included.
Uncoated
Legal for use on 1968 K25/K2500 Pickup Emission Vehicles in 49 States
Not Legal for use on 1968 K25/K2500 Pickup Emission Vehicles in California
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
without Smog Pump
CARB Executive Order D-57-33
GMC K25/K2500 Pickup 1969 5.7L / 350 / V8
5.0L / 307 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC K25/K2500 Pickup 1970 5.7L / 350 / V8
5.0L / 307 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC K25/K2500 Pickup 1971 5.7L / 350 / V8
5.0L / 307 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC K25/K2500 Pickup 1972 5.7L / 350 / V8
5.0L / 307 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC K25/K2500 Pickup 1973 5.7L / 350 / V8
5.0L / 307 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC K25/K2500 Pickup 1974 5.7L / 350 / V8 Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC K25/K2500 Suburban 1967 5.3L / 327 / V8
4.6L / 283 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
Legal for use on 67-68 K25/K2500 Suburban Emission Vehicles in 50 States
Legal for use on 1967 K25/K2500 Suburban Emission Vehicles in 50 States
GMC K25/K2500 Suburban 1968 5.4L / 327 / V8
5.3L / 327 / V8
5.0L / 307 / V8
Installation requires welding/modification to exhaust system.
Use big block flapper valve for smog legal applications.
Replacement spark plug wire and/or boot included.
Uncoated
Legal for use on 1968 K25/K2500 Suburban Emission Vehicles in 49 States
Not Legal for use on 1968 K25/K2500 Suburban Emission Vehicles in California
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
without Smog Pump
Legal for use on 67-68 K25/K2500 Suburban Emission Vehicles in 50 States
CARB Executive Order D-57-33
GMC K25/K2500 Suburban 1969 5.7L / 350 / V8
5.0L / 307 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC K25/K2500 Suburban 1970 5.7L / 350 / V8
5.0L / 307 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC K25/K2500 Suburban 1971 5.7L / 350 / V8
5.0L / 307 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC K25/K2500 Suburban 1972 5.7L / 350 / V8
5.0L / 307 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC K25/K2500 Suburban 1973 5.7L / 350 / V8
5.0L / 307 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC K25/K2500 Suburban 1974 5.7L / 350 / V8 Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC K2500 Suburban 1979 6.6L / 400 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
Legal for use on 79-80 K2500 Suburban Emission Vehicles in 49 States
Not Legal for use on 79-80 K2500 Suburban Emission Vehicles in California
CARB Executive Order D-57-33
GMC K2500 Suburban 1980 6.6L / 400 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
Legal for use on 79-80 K2500 Suburban Emission Vehicles in 49 States
Not Legal for use on 79-80 K2500 Suburban Emission Vehicles in California
CARB Executive Order D-57-33
GMC K2500 Suburban 1981 5.7L / 350 / V8 Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC K2500 Suburban 1982 5.7L / 350 / V8 Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC K2500 Suburban 1983 5.7L / 350 / V8 Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC K2500 Suburban 1984 5.7L / 350 / V8 Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC K2500 Suburban 1985 5.7L / 350 / V8 Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC K2500 Suburban 1986 5.7L / 350 / V8 Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC K2500 1979 5.7L / 350 / V8
6.6L / 400 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Legal for use on 79-80 K2500 Emission Vehicles in 49 States
Not Legal for use on 79-80 K2500 Emission Vehicles in California
GMC K2500 1980 5.7L / 350 / V8
6.6L / 400 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Legal for use on 79-80 K2500 Emission Vehicles in 49 States
Not Legal for use on 79-80 K2500 Emission Vehicles in California
GMC K2500 1981 5.7L / 350 / V8 Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC K2500 1982 5.7L / 350 / V8 Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC K2500 1983 5.7L / 350 / V8 Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC K2500 1984 5.7L / 350 / V8 Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC K2500 1985 5.7L / 350 / V8 Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC K2500 1986 5.7L / 350 / V8 Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC K25 1975 5.7L / 350 / V8
6.6L / 400 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Legal for use on K25 Emission Vehicles in 49 States
Not Legal for use on 75-78 K25 Emission Vehicles in California
GMC K25 1976 5.7L / 350 / V8
6.6L / 400 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Legal for use on K25 Emission Vehicles in 49 States
Not Legal for use on 75-78 K25 Emission Vehicles in California
GMC K25 1977 5.7L / 350 / V8
6.6L / 400 / V8
5.0L / 305 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Legal for use on K25 Emission Vehicles in 49 States
Not Legal for use on 75-78 K25 Emission Vehicles in California
GMC K25 1978 5.7L / 350 / V8
6.6L / 400 / V8
5.0L / 305 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Legal for use on K25 Emission Vehicles in 49 States
Not Legal for use on 75-78 K25 Emission Vehicles in California
GMC K35/K3500 Pickup 1968 5.0L / 307 / V8 Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC K35/K3500 Pickup 1969 5.0L / 307 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC K35/K3500 Pickup 1970 5.0L / 307 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC K35/K3500 Pickup 1971 5.0L / 307 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC K35/K3500 Pickup 1972 5.0L / 307 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC K35/K3500 Pickup 1973 5.0L / 307 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC K35/K3500 Pickup 1974 5.7L / 350 / V8 Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC K3500 1979 6.6L / 400 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
Legal for use on 79-80 K3500 Emission Vehicles in 49 States
Not Legal for use on 79-80 K3500 Emission Vehicles in California
CARB Executive Order D-57-33
GMC K3500 1980 6.6L / 400 / V8
5.7L / 350 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
Legal for use on 79-80 K3500 Emission Vehicles in 49 States
Not Legal for use on 79-80 K3500 Emission Vehicles in California
CARB Executive Order D-57-33
GMC K3500 1981 5.7L / 350 / V8 Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC K3500 1982 5.7L / 350 / V8 Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC K3500 1983 5.7L / 350 / V8 Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC K3500 1984 5.7L / 350 / V8 Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC K3500 1985 5.7L / 350 / V8 Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC K3500 1986 5.7L / 350 / V8 Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC K35 1977 5.7L / 350 / V8
6.6L / 400 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Legal for use on 77-78 K35 Emission Vehicles in 49 States
Not Legal for use on 77-78 K35 Emission Vehicles in California
GMC K35 1978 5.7L / 350 / V8
6.6L / 400 / V8
Installation requires welding/modification to exhaust system./modification to exhaust system.
Use big block flapper valve for smog legal applications
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Legal for use on 77-78 K35 Emission Vehicles in 49 States
Not Legal for use on 77-78 K35 Emission Vehicles in California
GMC Sprint 1971 5.7L / 350 / V8
6.6L / 400 / V8
5.0L / 307 / V8
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Use big block flapper valve for smog legal applications
Automatic transmission only.
For use with straight plug heads only.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Legal for use on 71-76 Sprint Emission Vehicles in 49 States
Not Legal for use on 71-76 Sprint Emission Vehicles in California
GMC Sprint 1972 5.7L / 350 / V8
6.6L / 400 / V8
5.0L / 307 / V8
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Use big block flapper valve for smog legal applications
Automatic transmission only.
For use with straight plug heads only.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Legal for use on 71-76 Sprint Emission Vehicles in 49 States
Not Legal for use on 71-76 Sprint Emission Vehicles in California
GMC Sprint 1973 5.7L / 350 / V8
5.0L / 307 / V8
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Use big block flapper valve for smog legal applications
Automatic transmission only.
For use with straight plug heads only.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
GMC Sprint 1974 5.7L / 350 / V8
6.6L / 400 / V8
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Use big block flapper valve for smog legal applications
Automatic transmission only.
For use with straight plug heads only.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Legal for use on 71-76 Sprint Emission Vehicles in 49 States
Not Legal for use on 71-76 Sprint Emission Vehicles in California
GMC Sprint 1975 5.7L / 350 / V8
6.6L / 400 / V8
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Use big block flapper valve for smog legal applications
Automatic transmission only.
For use with straight plug heads only.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Legal for use on 71-76 Sprint Emission Vehicles in 49 States
Not Legal for use on 71-76 Sprint Emission Vehicles in California
GMC Sprint 1976 5.7L / 350 / V8
6.6L / 400 / V8
5.0L / 305 / V8
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Use big block flapper valve for smog legal applications
Automatic transmission only.
For use with straight plug heads only.
Uncoated
without Smog Pump
CARB Executive Order D-57-33
Legal for use on 71-76 Sprint Emission Vehicles in 49 States
Not Legal for use on 71-76 Sprint Emission Vehicles in California
GMC Sprint 1977 5.7L / 350 / V8
5.0L / 305 / V8
Replacement Replacement spark plug wire and/or boot included. wire and/or boot included.
Use big block flapper valve for smog legal applications
Automatic transmission only.
For use with straight plug heads only.
Uncoated
without Smog Pump
CARB Executive Order D-57-33

Specifications:

CARB EO # D-57-48
Catalytic Converter(s) Included No
Collector Diameter 2.5 IN
Collector Port Diameter 2.5 IN
Collector Reducers Included No
Color Grey
Design Shorty
Finish Uncoated
Flange Thickness 3/8 IN
Gasket Or Seal Included Yes
Gaskets Included Yes
Grade Type Performance
Header Material 409 Stainless Steel
Header Style Shorty
Mounting Hardware Included Yes
Oxygen Sensor Port Yes
Part Type Exhaust Header
Primary Tube Outside Diameter 1.625 IN
Proposition 65 www.P65Warnings.ca.gov
Sheen Level Matte
Tube Wall Thickness 0.059 IN
Warranty Time 24 Months

Reviews:

Write a Review
* Your Name:
* Email (This will not be displayed)
* Rating:
Comments:

Ask a question about

JBA Performance Exhaust 65-91 GM Truck Cat4Ward® 5.0/5.7L, 265-400 Raw 409 1830S-6: