Hi-Ram Lower Manifold GM LS1/LS2/LS6 Cathedral Port Carbureted Base Only (plenum-Top-Mounting Fabrication Flange Available) Holley

Cast aluminum construction. 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.

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. 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.

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!

Features and Benefits:

• Port Size - 2.49 inch Height x 1.21 inch Wide Mounting Flange Gasket Type - Standard LS3 Molded O-Ring Plenum Top Gasket Type - 3/32 inch Round O-ring Cord 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: Natural
• 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: Natural
• 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