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Holley 300-276 SBF 289-347 Single Plane Fuel Injection Intake

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#425300276

Holley 300-276 SBF 289-347 Single Plane Fuel Injection Intake

Single plane design with isolated plenum for cooler charge air temperatures
4150 square bore mounting flange
Power band: 2500-7500 RPM

$623.95

Factory Shipped

$674.95

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Product Summary

EFI Fuel System Type, Multi-port Injection Style, Satin

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

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Key Specs

Injection Style	Multi-port
Intake Manifold Type	Single Plane
Carburetor Flange Type	4-Barrel Square Bore
RPM Range	2,500-7,000
Material Type	Aluminum

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Holley 300-276 Details

Holley EFI 4150 Single Plane Fuel Injection Intake Manifold Small Block Ford 289-347

The new single plane intake manifolds are designed to provide a broad RPM powerband for high-performance street/strip engine applications to a maximum engine speed of 7500 RPM. The EFI manifold is designed to work with 4150 Style Throttle body EFI systems like the Holley 4150 style flange Universal Throttle Bodies. These intake manifolds are designed to accept most stock hardware and accessory brackets, but offer performance features like better plenum and runner geometry for improved charge airflow. The isolated design of the air/fuel passages helps to increase charge air density and performance. The 300-276 EFI manifold includes black anodized fuel rails and rail bracket assortment for an easy installation with the injectors that you choose to use for your combination. The intake manifolds are designed for use with 289-347 cubic inch Small Block Ford engines 8.2" deck height.

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

Charts

Installation Instructions (PDF)

Guides & Documents

Intake Manifolds Installation Instructions (425300276)

CARB Warning

For race/ off road use or for use on pre-1966 vehicles.

Emissions warning: this part only legal for sale or use in California for racing (competition) vehicles which may never be used, registered, or licensed for use upon a public highway, or if installed in vehicles model-year 1965 or older; motorcycles model-year 1977 or older; or off-highway recreational vehicles (such as off-road motorcycles and all-terrain vehicles) model-year 1996 and older. Any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.

CA Prop 65

CARB warning

Holley 300-276 Specifications

KEY SPECS
MFG. Part #	300-276
Brand	Holley
Injection Style	Multi-port
Intake Manifold Type	Single Plane
Carburetor Flange Type	4-Barrel Square Bore
RPM Range	2,500-7,000
Material Type	Aluminum

GENERAL
Fuel System Type	EFI
Finish	Satin
Color	Natural
Intake Section Included	Complete
Throttle Body Included	No
Injectors Included	No
Aftermarket Fuel Rail Required	Yes
Fuel Rails Included	Yes
Hardware Included	No
Gaskets Included	No
Mounted Height	6.4"
Port Height	1.82"
Port Width	1.04"
Runners Included	Yes
Runners Removable	No
Emission Code	3
Sold in Quantity	Each
GTIN Code	090127119303

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