Holley Hi-Ram EFI intake manifolds are now available for 1965 & later 396-502+ Mkiv-Mkvi Big Block Chevy engines with standard intake flange rectangle-port cylinder heads. Traditional Big Block Chevy engines can now also be fitted with the Holley Brand Hi-Ram type EFI intake manifolds that have so well served Gm Ls & Lt, Gen 3 Hemi, Sbf Ford, and Ford Coyote engine platforms.

The iconic Chevy Sbc & Bbc platforms are primed for 21st century induction systems, Holley EFI engine management, and Holley fuel systems.

Features and Benefits:

• The Big Block Chevy Hi-Ram manifold is available in either a traditional Hi-Ram 105mm plenum top or with a 2 x 4150 4-barrel throttle body plenum top options Hi-Ram intake manifolds are a cost-effective alternative to fabricated sheet-metal or billet manifolds for high-performance applications where induction system height is not limited Requires the use of early type Gm or small cap Msd or Holley Distributors
• Not compatible with Hei distributors Cast 356-T6 Aluminum Construction, Natural, Satin As-Cast Aluminum Finish

Details:

• Basic Operating RPM Range: 1500-8000 RPM
• Cnc Ported: No
• Carburetor Flange: Square/4150
• Carburetor Quantity: 2.0
• Carburetor Studs Included: No
• Color: Natural
• Construction: Cast Aluminum
• Cylinder Head Port Shape: Rectangle
• Egr Port: No
• Engine: Chevrolet Small Block Gen I | Chevy Big Block V8
• Flange Style: 4150
• Fuel Injectors Included: No
• Fuel Rail(s) Included: No
• Fuel System Type: EFI
• Gasket Or Seal Included: No
• Grade Type: Performance
• Intake Port Gasket(s) Included: No
• Manifold Type: Hi-Ram
• 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 Bore Diameter: 3.6
• Throttle Body Gasket Included: No
• Throttle Body Included: No
• Vacuum Ports: No
• Warranty: Manufacturer's Limited 90 Day Warranty