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.
Note: the high volume -8AN fuel rail kit includes hardware and brackets to accommodate long (usually standard length) fuel injectors or short (such as Pico, or LS7) fuel injectors.
Specifications:
Construction: Cast
EGR Port: No
Engine: GM LS3
Finish: Satin
Flange Style: EFI
Fuel Injectors Included: No
Fuel Rail(s) Included: Yes
Fuel System Type: EFI
Gasket Or Seal Included: Yes
Injector Quantity: 8 injectors
Intake Port Gasket(s) Included: No
Material: Aluminum
Nitrous Bung(s) Included: No
Recommended Use: Supercharger or Turbo
Removable Runners: No
Plane Type: Single Plane
Throttle Body Bore Diameter: 105 MM
Throttle Body Included: No
Warranty Manufacturer's: Limited 90 Day Warranty
Part Number: 300-117
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.
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
Manifold has provisions for (1) 3/8 NPT and (2) 1/8 NPT fittings
