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Holley EFI

Holley EFI 300-304 HI-RAM 95MM Cast Side Mount Plenum Top Cast Finish

Part # 300-304 Be the first to write a review

compatible with gm style throttle body patterns

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Holley EFI 300-304 HI-RAM 95MM Cast Side Mount Plenum Top Cast Finish

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HI-RAM 95MM Cast aluminum Side Mount Plenum Top for EFI Hi-Ram Manifolds

Holley now has cast aluminum plenum top options for those of us with limited room in the front of Holley's engine bays. The cast aluminum side mount plenum tops resemble the older Ford EFI manifolds and will allow you to mount the throttle body on the side. This will allow for easier fabrication for boosted applications or for just a different look on your Hi-Ram manifold.
Cast aluminum construction designed to mount on Holley's existing Hi-Ram manifold bases. Available in cast or black finish. Models for GM Style throttle body patterns in 95mm and 105 mm sizes.

Features:

  • Designed for side mounted throttle bodies
  • Allows room for designing boosted applications
  • Cast Aluminum construction
  • 95mm size
  • GM throttle body fitment
  • Mounts to existing Hi-Ram manifold bases
  • Lid has been verified to fit under Cervinis 2.5” cowl hood on 1979-1993 Mustangs with 351W & 302W Hi-Ram bases when using motor mounts that retain stock engine locations.
Brand Holley EFI
Emission Code3
Product TypeIntake Plenum Tops
UPC090127066423
Manufacturer Part Number300-304
Part Number300-304
3

This part is legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles and Racing Use Only Vehicles.

The following vehicles are considered Uncontrolled (Non-Emissions Controlled) Vehicles:

  • 1965 and older U.S. manufactured California Certified vehicles
  • 1967 and older U.S. manufactured Federally Certified vehicles
  • 1967 and older Foreign manufactured vehicle

The following vehicles are considered Racing Use Only Vehicles:

  • Racing Use Only Vehicles are vehicles that are used exclusively for competition and that are not registered and that may never be used on the street

WARNING: It is against the law to install this part on an Emissions Controlled Vehicle

The following vehicles are considered Emissions Controlled Vehicles:

  • 1966 and newer U.S. manufactured California Certified vehicles
  • 1968 and newer U.S. manufactured Federally Certified vehicles
  • 1968 and newer Foreign manufactured vehicle
Instructions for Part# 300-304
Please see the diagrams in the product images for other dimensions.<br><br>***Lid has been verified to fit under Cervinis 2.5 in. cowl hood on 1979-1993 Mustangs with 351W & 302W Hi-Ram bases when using motor mounts that retain stock engine locations.
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    Some parts are not legal for use in California or other states with similar regulations.