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Chev LS1 LS2 LS3 Holley EFI LS Hi-Ram Intake Manifold # HO300-123

by Holley
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AU $1,695.00

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The Holley GM LS1/LS2/LS6 Modular Hi-Ram Intake Manifold is introduced as a cost effective alternative to fabricated sheet-metal for high-performance applications where induction system height is not limited. Coupling this Hi-Ram intake with the high flowing LS1/LS2/LS6 style cylinder heads has outstanding potential for N/A and forced induction applications at a budget-minded cost. Aggressive, bold, race-bred styling will make bad intentions clear for drag race, muscle car, marine, off-road, sandrails, pulling trucks, track, street-rod 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 cross-section designed to perform well for a wide range of engine configurations EFI fuel rails are machined for -8AN O-ring Fittings with passages large enough to accommodate high fuel flows and dampen pressure pulsations in the fuel system and come standard with EFI Hi-Ram 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 7000-8000+RPM.
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 in2 to 2.53 in2
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