Holley EFI 105MM Hi-Ram Intake Manifold For LS3 L92

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Holley EFI 105MM Hi-Ram Intake Manifold For LS3 L92

Product Description

HOLLEY HI-RAM INTAKE - GM LS3/L92EFI Hi-Ram Intake for 1 x 105mm GM LS Throttle Body – Longitudinal Mount Plenum Top

PART# 300-117

The Holley GM LS3/L92 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 LS3/L92 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.


Port Size – 2.49” Height x 1.21” Wide


Mounting Flange Gasket Type – Standard LS3 Molded O-Ring


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


Throttle Body Flange Location, with 92/102mm 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)


Runner Length – 6.50”, As-Cast Runner Cross-Sectional Area – Tapered 4.25 in² to 2.77 in²