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Holley LS Carbureted Manifold - 2x4 Dual Plane

Holley Carbureted 2x4150 Dual Plane Intake Manifold, LS Gen 3 LS1/LS2/LS6 engines

PART# 300-120

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All GM LS Gen 3 engines equipped with LS1/LS2 style cathedral port cylinder heads

Overview

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”

Specs

BrandHolley
ConstructionCast
Emission Code3
EngineGM LS1/LS2/LS6
FinishSatin
Flange Style4150 Square Bore
Front Height4.47 inch
Fuel System TypeCarb
Manifold TypeDual Plane
Product TypeManifold
Rear Height5.54 inch
Part Number300-120

Emissions

This part is legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles and Racing Use Only Vehicles.

The following vehicles are considered Uncontrolled (Non-Emissions Controlled) Vehicles:

  • 1965 and older U.S. manufactured California Certified vehicles
  • 1967 and older U.S. manufactured Federally Certified vehicles
  • 1967 and older Foreign manufactured vehicle

The following vehicles are considered Racing Use Only Vehicles:

  • Racing Use Only Vehicles are vehicles that are used exclusively for competition and that are not registered and that may never be used on the street

WARNING: It is against the law to install this part on an Emissions Controlled Vehicle

The following vehicles are considered Emissions Controlled Vehicles:

  • 1966 and newer U.S. manufactured California Certified vehicles
  • 1968 and newer U.S. manufactured Federally Certified vehicles
  • 1968 and newer Foreign manufactured vehicle

Tech Resources

All GM LS Gen 3 engines equipped with LS1/LS2 style cathedral port cylinder heads
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      Some parts are not legal for use in California or other states with similar regulations.