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.
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
- Engine Block Style:
- Stock/OEM standard deck
- Basic Operating RPM Range:
- 3,500-8,000
- Intake Style:
- Fuel Injection
- Material:
- Aluminum
- Finish:
- Black Ceramic
- Height:
- 12.320 in.
- Injection Style:
- Multi-port
- Throttle Body Bore Size:
- 102mm
- EGR:
- No
- Has Bosses:
- Yes
- Bosses Machined:
- Yes
- Boss Quantity:
- Eight
- Injectors Included:
- No
- Fuel Rails Included:
- Yes
- Aftermarket Fuel Rail Required:
- No
- Throttle Body Included:
- No
- Quantity:
- Sold individually.
- Notes:
- Fits LS3/L76/L92/L99-based engines with rectangular intake port shape only. Due to transverse engine configuration, fitment on LS4 would require significant modification
- Make:
- Chevrolet
- Engine Family:
- Chevy small block Gen III/IV (LS-based engines)
- Engine Sizes:
- 6.0L/364-6.2L/376
- Years:
- 2008-2019
- Cylinder Head Style:
- Rectangular port
