Holley Single-Plane EFI Intake Manifold - Square Bore - Single Plane - GM LS-Series

Includes fuel rails, mounting hardware, and O-ring cylinder head mounting flange gaskets. HOLLEY EFI, HOLLEY EFI,The included fuel rails are designed to accept Bosch Style EV-1 or GM OE LS7 fuel injectors.

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 mild 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 and bellhousing flange

Port size - 2.33" height x 1.27" wide

Includes FKM o-ring intake to cylinder head gaskets

Product Description:

Intake Manifold

Single-Plane EFI

Square Bore

Single Plane

Aluminum

Natural

LS7

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.