Holley LS Mid-Rise EFI Square Bore Multi Port Intake Manifold - LS1 / LS2 / LS6 - GM LS-Series

Holley Mid-Rise Intake - GM LS1/LS2/LS6

Single Plane MidRise EFI LS Intake Manifold. Fits all GM LS Gen III or IV engines equipped with LS3/L92 style rectangular port cylinder heads

Includes mounting bolts & washers as well as pipe plugs for Manifold vacuum and MAP sensor ports. Also includes O-ring cylinder head mounting flange gaskets for an OEM style seal. Kit does not work with factory fuel rails and requires the use of Holley Fuel Rail Kit P/N HLY534-219

Features:

2500-7000 RPM power band

Vehicle Applications:

1997-2007 Chevrolet Corvette

1998-2002 Chevrolet Camaro

2004-2005 Cadillac CTS

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!

Includes mounting bolts & washers. Also includes O-ring cylinder head mounting flange gaskets for an OEM style seal. Kit does not work with factory fuel rails and requires the use of Holley Fuel Rail Kit P/N 534-219. 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 (see below in the service parts section).

4150 Square bore flange

Optimized runner layout and constant cross sectional area - broad torque curve, best vehicle performance from 2500-7000 RPM

Minimum carb flange height - fit in vehicles with minimum hood modifications

Cast aluminum construction - great manifold for centrifugal blower, turbocharged or NOS power adder applications

Efficient casting design - lightweight, consistent wall thicknesses, improved casting quality

Weight - 11.5 lbs.

Height (front) - 5.417" to the lifter valley cover flange at the engine block front flange

Port size - 2.50" height x 1.15" wide

Includes Viton O-ring intake to cylinder head gaskets - Viton is a registered trademark of DuPont Performance Elastomers

Kit does not work with factory fuel rails and requires the use of Holley Fuel Rail Kit P/N 534-219

Product Description:

Intake Manifold

LS Mid-Rise EFI

Square Bore

Multi Port

Aluminum

Natural

LS1 / LS2 / LS6

GM LS-Series

Kit

For over a century Holley has driven the cutting edge of fuel-system design. That work continues today through Holley’s market-leading EFI products as well as through Holley’s family of best-in-industry brands. Top brands like MSD, Flowmaster, Hurst, Accel, and many more make up the industry’s leading offering of enthusiast-driven products to deliver robust, complete performance solutions for builders, racers, and drivers. From propelling the LS-, Coyote-, and Gen 3 Hemi-swap trends, to continuously innovating late-model and vintage vehicle performance, Holley’s commitment to its customers and their cars is at the core of everything we do.