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They are available in the dual 4150 throttle body pattern or in a full blank top so that you can design your our system. The plenum tops are constructed of cast aluminum.
Fits Holley Hi-Ram Manifolds-Holley has launched new black ceramic coated plenum tops to match our Hi-Ram manifold bases!
Holley EFI Holley Hi-Ram Intake Plenum Top Only-Black Finish - 300-208BK-2
$337.95
Features:
- Height at Plenum Flange: 9.44”
- A-B Height: 12.10” (w/ Carb Style Top - 2 x 4150 or 2 x 4500) – See Drawing
- O-Ring Seals for Plenum Top
- Modular Design w/ Removable Top
Product Specifications:
- Product Details: Hi-Ram, Plenum Top Only, Blank Flange
- Basic Operating RPM Range: N/A
- Carburetor Flange: N/A
- Carburetor Quantity: N/A
- Carburetor Studs Included: N/A
- CNC Ported: No
- Color: Black
- Construction: Cast
- Cylinder Head Port Shape: N/A
- Deck Height: N/A
- EGR Port: No
- Engine: Universal
- Flange Style: N/A
- Fuel Injectors Included: No
- Fuel Rail(s) Included: No
- Gasket Or Seal Included: Yes
- Grade Type: Performance
- Intake Port Gasket(s) Included: No
- Manifold Type: Hi-Ram
- Material: Aluminum
- Nitrous Bung(s) Included: No
- Part Type: Engine Intake Manifold
- Plenum Finish: Black
- Product Type: Intake Manifold Top
- Removable Runners: No
- Removable Top/Lid: Yes
- Single Or Dual Plane Type: Single Plane
- Throttle Body Bore Diameter: N/A
- Throttle Body Gasket Included: No
- Throttle Body Included: No
- Type of Component: Manifold Top
- Vacuum Ports: No