HOLLEY INTAKE MANIFOLD – HI-RAM – LS1/LS2/LS6 – 105mm – BLACK – 300-123BK

The Holley GM LS1/LS2/LS6 Modular HiRam Intake Manifold is introduced as a cost effective alternative to fabricated sheetmetal for highperformance applications where induction system height is not limited. Coupling this HiRam intake with the high flowing LS1/LS2/LS6 style cylinder heads has outstanding potential for N/A and forced induction applications at a budgetminded cost. Aggressive, bold, racebred styling will make bad intentions clear for drag race, muscle car, marine, offroad, sandrails, pulling trucks, track, streetrod applications and more!

The base is designed to be modular in configuration to accept a wide range of carbureted and EFI tops and to be attractive to builders and fabricators as the foundation for custom induction systems.

Runner length and the tapered crosssection designed to perform well for a wide range of engine configurations

EFI fuel rails are machined for 8AN Oring Fittings with passages large enough to accommodate high fuel flows and dampen pressure pulsations in the fuel system and come standard with EFI HiRam kits.

Cast aluminum construction.

Intended for use on N/A or forced induction engines in the 6.0 to 7.0+ liter range, max power at 70008000+RPM. Features:

Base Plenum Top Mounting Flange Height 8.42 to the lifter valley cover flange on engine block.

Total Height with 92/105mm EFI Plenum Top 12.32 to the lifter valley cover flange on engine block.

Runner Length 6.58, As-Cast Runner Cross-Sectional Area Tapered 4.25 in to 2.53 in

Throttle Body Flange Location, with 102mm EFI Plenum Top: Height 8.42 (from engine block lifter valley cover flange), Longitudinal Location 3.84 (forward from engine block front flange), Angle 25 deg. (down from vertical)

Plenum Top Gasket Type 3/32 Round O-ring Cord

Mounting Flange Gasket Type Standard LS3 Molded O-Ring

Port Size 2.49 Height x 1.21 Wide