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. 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.
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! Runner length and the tapered cross-section designed to perform well for a wide range of engine configurations Cast aluminum construction.
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.
Features and Benefits:
- Port Size - 2.49 inch Height x 1.21 inch Wide Plenum Top Gasket Type - 3/32 inch Round O-ring Cord Mounting Flange Gasket Type - Standard LS3 Molded O-Ring Runner Length - 6.58 inch, As-Cast Runner Cross-Sectional Area - Tapered 4.25 in2 to 2.53 in2
Associated Comments:
- These parts should be used for the following applications: Racing/Performance/Street Rodder where hood restrictions are Not a consideration.
Details:
- Basic Operating RPM Range: 3500-8000 RPM
- Cnc Ported: No
- Carburetor Studs Included: No
- Color: Black
- Construction: Cast
- Cylinder Head Port Shape: Cathedral
- Deck Height: 9.24 Inch
- Egr Port: No
- Engine: Gm LS1/LS2/LS6
- Fuel Injectors Included: No
- Fuel Rail(s) Included: No
- Fuel System Type: Carb
- Gasket Or Seal Included: No
- Grade Type: Performance
- Intake Port Gasket(s) Included: No
- Material: Aluminum
- Nitrous Bung(s) Included: No
- Plenum Finish: Black
- Removable Runners: No
- Removable Top/Lid: Yes
- Single Or Dual Plane Type: Single Plane
- Throttle Body Gasket Included: No
- Throttle Body Included: No
- Type of Component: Lower Manifold
- Vacuum Ports: Yes
- Warranty: Manufacturer's Limited 90 Day Warranty
Holley Hi-Ram Lower Manifold GM LS1/LS2/LS6-Black LS1/LS2/LS6 Cathedral Port Carbureted Base Only (plenum-Top-Mounting Fabrication Flange Available) Holley 300-226BK
Specifications:
| Country of Origin | USA |
| Sold As | Each |
| UPC | 90127029923 |
| Availability | Available |
| Universal | No |