This fabricated aluminum side mount plenum top mounts to existing Hi-Ram manifold bases, giving builds with limited engine bay clearance a way to relocate the throttle body to the side. The 4mm thick aluminum construction resembles older Ford EFI manifolds and simplifies fabrication for boosted applications or a different overall look.
Specifications:
- Product Type: Intake Manifold Top
- Construction: Fabricated aluminum, 4mm thick
- Finish: Silver
- Throttle Body Pattern: 86-95 Ford 5.0 style
- Inlet Size: 95mm
- Fits: Existing Hi-Ram manifold bases
- Part Number: 300-280
See the diagrams in the product images for additional dimensions.
FAQ
What manifold does the 300-280 plenum top mount to?
It mounts to existing Holley Hi-Ram manifold bases.
What throttle body pattern does it use?
It's built for the 86-95 Ford 5.0 style throttle body pattern in a 95mm inlet size.
How does the silver finish differ from the 300-281?
It's the same fabricated aluminum plenum top in a silver finish rather than black.

