Holley EFI Multi-Port 4150 Single Plane Intake Manifold Small Block Ford w/Fuel Rails
510-300-276
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Small Block Ford
Holley 300-276 Small Block Ford EFI 4150 Intake Manifold Features:
- Engineered for Small Block Ford engines with an original block deck height of 8.200 in. and standard head port openings and bolt hole locations.
- 2500-7500 RPM range makes it an excellent choice for Small Block Ford engines including 347 ci. strokers for street performance.
- Includes high-volume fuel rails with -6 AN o-ring ports and mounting hardware.
- The fuel rail kit comes with two sets of brackets; one set for long fuel injectors (usually standard length), and one set for short fuel injectors (such as Pico/EV6 style fuel injectors)
- Isolated (air-gap) plenum with a square bore, single plane 4150 style flange with a height at the front of 5.580 in. and 6.400 in. at the rear.
- 1.820 in. height x 1.040 in. wide intake ports are cast with extra material to allow for porting to 2 in. height x 1.200 in. width.
- Threaded NPT (pipe) ports located under the carburetor flange in 1/8, 1/4, and 3/8 sizes.
Fitment Notes:
- Does not fit 1980-1982 Ford 255 ci. engines.
- Early 289 ci. engines require thermostat housing w/counterbore 555-511310 for the thermostat.
Emissions:
- Holley 300-276 does not accept an EGR valve
- This part is not legal for sale or use for motor vehicles with pollution-control equipment
- This part is legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles and Racing Use Only Vehicles
Specifications:
Motor Vehicles
WARNING: Motor vehicles contain fuel, oils and fluids, battery posts, terminals and related accessories which contain lead and lead compounds and other chemicals known to the State of California to cause cancer, birth defects and other reproductive harm. These chemicals are found in vehicles, vehicle parts and accessories, both new and as replacements. When being serviced, these vehicles generate used oil, waste fluids, grease, fumes and particulates, all known to the State of California to cause cancer, birth defects, and reproductive harm.
Tools:
WARNING: Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Some examples of these chemicals are: lead from lead-based paints, crystalline silica from bricks and cement and other masonry products, and arsenic and chromium from chemically treated lumber. Your risk from exposure to these chemicals varies, depending on how often you do this type of work. To reduce your exposure, work in a well-ventilated area and with approved safety equipment, such as dust masks that are specially designed to filter out microscopic particles.
Electrical Cords
WARNING: The wires of these products contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling.