![EFI Hi-Ram 95 mm Side-Mount Intake Manifold Plenum Top for GM Style Throttle Body [Black Finish]](https://www.jegs.com/images/mini_750/500/510/510-300-304bk.jpg)
Product Discontinued
HOLLEYPART NUMBER: 510-300-304BK
EFI Hi-Ram 95 mm Side-Mount Intake Manifold Plenum Top for GM Style Throttle Body [Black Finish]
Currently Unavailable
This product is no longer available. Please call customer service for assistance at 1-800-345-4545.
GM Throttle Body Bolt Pattern
EFI Hi-Ram Intake Manifold Plenum TopFor Holley Hi-Ram Manifold Base GM Style 95 mm Throttle Body Bolt Pattern Side Mount Cast Aluminum Black Finish
Holley 300-304BK EFI Hi-Ram 95 mm Side-Mount Intake Manifold Plenum Top for GM Style Throttle Body:
- Side-mounted throttle bodies give additional room for designing boosted applications
- Mounts to existing Hi-Ram manifold bases
Holley 300-304BK EFI Hi-Ram 95 mm Side-Mount Intake Manifold Plenum Top Fitment Notes:
- Compatible with all newer generation Hi-Ram bases including LS1, LS2, LS6, LS3, L92, LS7, LT1, and FORD 351W and 302W
- Early model Hi-Ram bases with through holes instead of threaded holes on manifold base require alternate hardware, see installation instructions for hardware recommendations
- Verified to fit under Cervinis 2.5 in. cowl hood on 1979-1993 Mustangs with 351W or 302W Hi-Ram bases when using motor mounts that are in stock engine location
Emissions Note:
This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.
CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART
Part TypePlenum Cover
BrandHOLLEY
Package Height5.32
Package Width15.35
Package Length19.6
Weight9.0 PG
Part CategoryPerformance Parts
Throttle Body Bore Size (Mm)95
QuantitySold individually
MaterialCast Aluminum
Part FitmentSemi Universal
Throttle Body StyleGM
Plenum Cover FinishBlack
Vendor Part Number300-304BK
Package Qty1
Package TypeEA
No Questions
No Reviews
Items You Need
Some parts are not legal for use in California or other states with similar laws / regulations



![1/2 in. Drive Torque Wrench [10 to 150 ft. lbs.]](https://www.jegs.com/images/mini_200/500/555/555-m200db.jpg)



![Fender Cover with Pocket [23 in. W x 31 1/2 in. L]](https://www.jegs.com/images/mini_200/500/555/555-65010.jpg)
![Heavy-Duty Nitrile Gloves [7 mils Thick, Large]](https://www.jegs.com/images/mini_200/500/555/555-1124.jpg)


