Holley Split-Design Race Intake Manifold
510-300-291BK
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GM LS
Rectangle Port
Engineered with racing and high-performance engines in mind, the featured Split Design allows simple disassembly for easy access to the internal plenum and ports for easier custom port work.
Features
- Designed for maximum performance with a profile for hood clearance
- Economical and lighter than the competitors split design intakes
- Split Design provides easy porting
- Captured O-ring seals provide a leak-free seal with the cylinder heads and the intake split
- Includes Intake Mounting Bolts with Washers, (8) O-ring Seals
Dimensions
- Fits a 4150 square-bore carburetor with up to 1 3/4 in. diameter throttle blades
- Carburetor Flange Height: 7.250 in. with a 0-degree angle
- Runner Cross-Sectional Area: As-Cast 4.500 in. square at runner entry tapered to 3.200 in. square at flange exit
- Vacuum Ports: (2) 1/8 in. NPT, (1) 1/4 in. NPT, and (1) 3/8 in. NPT at throttle body flange
- Port Size: 2.590 in. Height x 1.280 in. Wide
- Port Flange O-Rings: 0.139 in. Round, Size 2-232, FKM
- Split Flange O-Ring: 0.139 in. Round, 18.500 in. length, FKM
Emissions
This part is legal for use on Racing Use Only Vehicles and Non-Emissions Controlled Vehicles. It is against the law for installation on an Emissions Controlled Vehicle.
The following vehicles are considered Uncontrolled/Non-Emissions Controlled
- 1965 and older U.S. manufactured California Certified vehicles
- 1967 and older U.S. manufactured Federally Certified vehicles
- 1967 and older Foreign manufactured vehicle
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.