Description
Part Number: 300-276
Holley EFI 4150 Single Plane Intake Manifold Kit
Engineered for high-performance Small Block Ford 289-347 engines, delivering an optimized 2,500-7,500 RPM powerband and cooler intake charge temperatures.
Key Features
- ☑ Designed for Small Block Ford 289, 302, and 347 ci engines with 8.2″ deck height
- ☑ High-rise single plane plenum architecture with isolated fuel/air passages for increased charge density
- ☑ Standard 4150 square bore mounting flange for 4150-style throttle body EFI systems
- ☑ High-flow black anodized aluminum fuel rails with -6AN fittings and laser-etched logo
- ☑ Includes two bracket sizes to support various fuel injector body lengths
- ☑ Integrated 1/8″ NPT, 1/4″ NPT, and 3/8″ NPT accessory vacuum ports under the flange
Technical Specifications
| Brand | Holley EFI |
|---|---|
| Manufacturer Part Number | 300-276 |
| Engine Family | Small Block Ford (289 / 302 / 347 ci) |
| Block Deck Height | 8.200″ |
| Manifold Type | Single Plane |
| Mounting Flange | 4150 Square Bore |
| Power Band | 2,500 – 7,500 RPM |
| Fuel System Type | Multi-Port EFI |
| Material / Finish | Cast Aluminum / Satin Natural |
| Port Dimensions | 1.82″ H x 1.04″ W (Portable to 2.00″ H x 1.20″ W) |
| Manifold Height | Front: 5.58″ | Rear: 6.40″ |
| Fuel Rails Included | Yes (Black Anodized, -6AN) |
What’s Included in the Box
- 1 x Holley EFI Single Plane Intake Manifold (PN 300-276)
- 2 x Black Anodized Aluminum Fuel Rails (-6AN O-ring ports)
- 1 x Fuel Rail Mounting Hardware & Bracket Assortment
- 1 x Vacuum Port Plug Set
Built to uncompromising motorsport standards, the Holley 300-276 single plane intake manifold maximizes volumetric efficiency across street and track applications. At JP Racing, we supply genuine Holley Performance products backed by expert UK technical support and fast nationwide dispatch.
Reviews
There are no reviews yet.