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Holley LS Carbureted Manifold, 2x4 Dual Plane GM LS1/LS2/LS6 300-120

Holley LS Carbureted Manifold, 2x4 Dual Plane GM LS1/LS2/LS6 300-120
Holley LS Carbureted Manifold, 2x4 Dual Plane GM LS1/LS2/LS6 300-120Holley LS Carbureted Manifold, 2x4 Dual Plane GM LS1/LS2/LS6 300-120
$785.99 ea
NEWtext_no_potext_eta_supplier10 Available from HOLLEY PERFORMANCE PRODUCTS as of 05/23/2025
Model: 3992505
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Holley Carbureted 2x4150 Dual Plane Intake Manifold, LS Gen 3 LS1/LS2/LS6 engines
Features:
  • The Holley GM LS1/LS2/LS6 2x4V dual-plane was designed in the tradition of the great dual Holley 4160 induction systems that competed on drag strips, in Trans-Am and at Lemans in the 1960’s.
  • The dual-plane equal-distribution layout produces great mid-range torque without compromising top end power.
  • Carbureted and EFI versions available
  • Power band from 1500-7000 rpm
  • Appropriate for any street/performance, muscle car, or street rod enthusiast
  • Cast aluminum construction
  • Intended for use on all GM LS Gen III engines equipped with LS1/LS2 style cathedral port cylinder heads
  • Carb Flange Center-To-Center: 8-5/8”
All GM LS Gen 3 engines equipped with LS1/LS2 style cathedral port cylinder heads
Installation Notes:
All GM LS Gen 3 engines equipped with LS1/LS2 style cathedral port cylinder heads
About Holley Performance Products

Holley has been the undisputed leader in fuel systems for over 100 years. Holley carburetors powered every Monster Energy NASCAR Cup team and nearly every NHRA Pro-Stock champion for four decades. Now, Holley EFI products power these cars and are dominating the performance world. Holley products for GM's popular LS engine are dominating the LS scene as well. Holley's products also include performance fuel pumps, intake manifolds and engine dress-up products for street performance, race and marine applications. As a single solution or partnered with products from other Holley companies we can give you the edge you need over the competition!

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Holley LS Carbureted Manifold, 2x4 Dual Plane GM LS1/LS2/LS6 300-120: