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!ΓÇó 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.ΓÇó Runner length and the tapered cross-section designed to perform well for a wide range of engine configurations ΓÇó 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.ΓÇó Cast aluminum construction.ΓÇó 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.
Specifications:
| Description_ASC |
*** The front and rear height measurements listed in the Specs section are referencing the overall height with the top plate installed. Please see the diagrams in the product images for other dimensions. |
| Description_DEF |
Engine Intake Manifold |
| Description_DES |
Holley Hi-Ram EFI Manifold - GM LS3/L92 |
| Description_INV |
LS3 HI-RAM, INTAKE MANIFOLD EFI BLANK TO |
| Description_FAB |
Height (Carbureted or EFI, 2x4V Top Mount & Blank) - 11.08" to the lifter valley cover flange on engine block. |
| Description_FAB |
Base Plenum Top Mounting Flange Height - 8.42" to the lifter valley cover flange on engine block. |
| Description_FAB |
Port Size - 2.49" Height x 1.21" Wide |
| Description_FAB |
Mounting Flange Gasket Type - Standard LS3 Molded O-Ring |
| Description_FAB |
Plenum Top Gasket Type - 3/32" Round O-ring Cord |
| Description_FAB |
Runner Length - 6.50", As-Cast Runner Cross-Sectional Area - Tapered 4.25" to 2.77 in┬▓ |
| Description_EXT |
Hi-Ram Intake Manifold; Upper; EFI; w/Blank Configurable Top; Front/Rear Height 11.08 in.; Incl. Fuel Rails; RPM Power Band 1500-7000; Satin Finish; |
| Description_MKT |
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!ΓÇó 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.ΓÇó Runner length and the tapered cross-section designed to perform well for a wide range of engine configurations ΓÇó 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.ΓÇó Cast aluminum construction.ΓÇó 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. |
| Description_SHO |
Intake Manifold |
| Construction |
Cast |
| Manifold Type |
Hi-Ram |
| Fuel System Type |
EFI |
| WARNING CA Proposition 65 |
No |
| Front Height |
11.080 in. |
| Engine Make/Size |
GM LS3/L92 |
| Number of Carbs |
None; Blank Top |
| Cylinder Head Type |
Standard |
| Emission |
Without EGR |
| Rear Height |
11.080 in. |
| Flange Type |
Blank |
| Usage |
Racing |
| RPM Range |
1500-7000 |
| Position |
Upper |
| Finish |
Satin |
| Length |
13.0000 |
| Width |
15.0000 |
| Height |
22.0000 |
| Weight |
33.0000 |
