Product Description
Fits Holley Hi-Ram Manifolds-Holley has launched new black ceramic coated plenum tops to match our Hi-Ram manifold bases!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.
Features
- Single plane design with isolated plenum for cooler charge air temperatures
- 4150 square bore mounting flange
- Power band: 2500-7500 RPM
- Height: front 5.58”, rear 6.40”
- Port size: 1.82” height, 1.04” width
- Extra material allows for porting to 2.00” height, 1.20” width
- Anodized aluminum fuel rails with laser-etched logo (EFI model) 6AN
- Includes fuel rail mounting brackets in two sizes for more options in fuel injectors (EFI Model)
- Accessory ports under the carburetor in 1/8 NPT, 1/4 NPT and 3/8 NPT sizes