Holley LS1 LS2 Dual Plane 2 x 4 EFI Intake Manifold Black

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

NOTE: The EFI versions of the LS HI-Ram intake manifold and fuel rail are designed to accept Bosch Style EV-1 or Magneti Marelli Pico fuel injectors. OE LS fuel injectors may not fit properly in the Hi-Ram EFI intake manifold fuel rail assembly. There is a kit available separately for the LS7 Hi-Ram EFI to allow the use of stock LS7 fuel injectors, P/N 300-230.

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 technology of the LS pushrod engine is now mated with the im
• The dual-plane equal-distribution layout produces great mid-range torque without compromising top end power. The LS engine architecture does not utilize an intake mounted water neck or distributor so it’s perfect for two Holley carburetors and this intak
• 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”

 

Brand	Holley EFI
Construction	Cast
Emission Code	3
Engine	GM LS1/LS2/LS6
Finish	Black
Front Height	4.47 inch
Fuel System Type	EFI
Manifold Type	Dual Plane
Product Type	Manifold
Rear Height	5.54 inch
RPM Power Band	1500-7000
Warranty	Limited 90 Day
Part Number	300-121BK

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