$37.95
Model #66756
In Stock
Each PROFORM 12.9 Steel (equiv. Grade 8+) Header Bolt is permanently assembled with a pair of special washers. When the bolt is torqued to 28+ ft-lbs, the washers super-hardened external teeth bite into and grip the bottom of the bolt head and the top surface of the header. After being self-locked in this manner, any bolt-loosening rotation is blocked by a wedge-locking action created by the washers interfacing, matching cams. It's an uphill climb: vibration that might ordinarily loosen the bolt actually increases the wedge-locking tension, securing the bolt even more. Because this simple wedge-locking method uses tension instead of friction, contact with oil actually facilitates the wedge effect. When changing headers, PROFORM Header Bolts can be untightened with a normal wrench, lubricated, and reused.Features:
WARNING: Cancer and Reproductive Harm
Make Vehicle | Model | Submodel | Year | Engine | Notes |
---|---|---|---|---|---|
1970-1975 Chevrolet Bel Air |
Bel Air | 1970-1975 | 8 Cylinder 7.4 Liter |
|
|
1970-1972 Chevrolet Bel Air |
Bel Air | 1970-1972 | 8 Cylinder 6.6 Liter |
|
|
1965-1969 Chevrolet Bel Air |
Bel Air | 1965-1969 | 8 Cylinder 6.5 Liter |
|
|
1966-1969 Chevrolet Bel Air |
Bel Air | 1966-1969 | 8 Cylinder 7.0 Liter |
|
|
1970-1972 Chevrolet Biscayne |
Biscayne | 1970-1972 | 8 Cylinder 7.4 Liter |
|
|
1970-1972 Chevrolet Biscayne |
Biscayne | 1970-1972 | 8 Cylinder 6.6 Liter |
|
|
1965-1969 Chevrolet Biscayne |
Biscayne | 1965-1969 | 8 Cylinder 6.5 Liter |
|
|
1966-1969 Chevrolet Biscayne |
Biscayne | 1966-1969 | 8 Cylinder 7.0 Liter |
|
|
1973-1974 Chevrolet Blazer |
Blazer | 1973-1974 | 8 Cylinder 7.4 Liter |
|
|
1970-1972 Chevrolet Brookwood |
Brookwood | 1970-1972 | 8 Cylinder 6.6 Liter |
|
|
1970-1972 Chevrolet Brookwood |
Brookwood | 1970-1972 | 8 Cylinder 7.4 Liter |
|
|
1969 Chevrolet Brookwood |
Brookwood | 1969 | 8 Cylinder 6.5 Liter |
|
|
1969 Chevrolet Brookwood |
Brookwood | 1969 | 8 Cylinder 7.0 Liter |
|
|
1975-1980 Chevrolet C10 |
C10 | 1975-1980 | 8 Cylinder 7.4 Liter |
|
|
1973-1974 Chevrolet C10 Pickup |
C10 Pickup | 1973-1974 | 8 Cylinder 7.4 Liter |
|
|
1970-1972 Chevrolet C10 Pickup |
C10 Pickup | 1970-1972 | 8 Cylinder 6.6 Liter |
|
|
1968-1969 Chevrolet C10 Pickup |
C10 Pickup | 1968-1969 | 8 Cylinder 6.5 Liter |
|
|
1973-1980 Chevrolet C10 Suburban |
C10 Suburban | 1973-1980 | 8 Cylinder 7.4 Liter |
|
|
1970-1972 Chevrolet C10 Suburban |
C10 Suburban | 1970-1972 | 8 Cylinder 6.6 Liter |
|
|
1968-1969 Chevrolet C10 Suburban |
C10 Suburban | 1968-1969 | 8 Cylinder 6.5 Liter |
|
|
1990-1993 Chevrolet C1500 |
C1500 | 1990-1993 | 8 Cylinder 7.4 Liter |
|
|
1975-1986 Chevrolet C20 |
C20 | 1975-1986 | 8 Cylinder 7.4 Liter |
|
|
1973-1974 Chevrolet C20 Pickup |
C20 Pickup | 1973-1974 | 8 Cylinder 7.4 Liter |
|
|
1970-1972 Chevrolet C20 Pickup |
C20 Pickup | 1970-1972 | 8 Cylinder 6.6 Liter |
|
|
1968-1969 Chevrolet C20 Pickup |
C20 Pickup | 1968-1969 | 8 Cylinder 6.5 Liter |
|
|
1973-1986 Chevrolet C20 Suburban |
C20 Suburban | 1973-1986 | 8 Cylinder 7.4 Liter |
|
|
1970-1972 Chevrolet C20 Suburban |
C20 Suburban | 1970-1972 | 8 Cylinder 6.6 Liter |
|
|
1968-1969 Chevrolet C20 Suburban |
C20 Suburban | 1968-1969 | 8 Cylinder 6.5 Liter |
|
|
1991-2000 Chevrolet C2500 |
C2500 | 1991-2000 | 8 Cylinder 7.4 Liter |
|
|
1992-1999 Chevrolet C2500 Suburban |
C2500 Suburban | 1992-1999 | 8 Cylinder 7.4 Liter |
|
|
1975-1986 Chevrolet C30 |
C30 | 1975-1986 | 8 Cylinder 7.4 Liter |
|
|
1973-1974 Chevrolet C30 Pickup |
C30 Pickup | 1973-1974 | 8 Cylinder 7.4 Liter |
|
|
1970-1972 Chevrolet C30 Pickup |
C30 Pickup | 1970-1972 | 8 Cylinder 6.6 Liter |
|
|
1968-1969 Chevrolet C30 Pickup |
C30 Pickup | 1968-1969 | 8 Cylinder 6.5 Liter |
|
|
1988-2000 Chevrolet C3500 |
C3500 | 1988-2000 | 8 Cylinder 7.4 Liter |
|
|
1970-1972 Chevrolet Camaro |
Camaro | 1970-1972 | 8 Cylinder 6.6 Liter |
|
|
1969 Chevrolet Camaro |
Camaro | 1969 | 8 Cylinder 7.0 Liter |
|
|
1967-1969 Chevrolet Camaro |
Camaro | 1967-1969 | 8 Cylinder 6.5 Liter |
|
|
1970-1976 Chevrolet Caprice |
Caprice | 1970-1976 | 8 Cylinder 7.4 Liter |
|
|
1970-1972 Chevrolet Caprice |
Caprice | 1970-1972 | 8 Cylinder 6.6 Liter |
|
|
1966-1969 Chevrolet Caprice |
Caprice | 1966-1969 | 8 Cylinder 6.5 Liter |
|
|
1966-1969 Chevrolet Caprice |
Caprice | 1966-1969 | 8 Cylinder 7.0 Liter |
|
|
1970-1973 Chevrolet Chevelle |
Chevelle | 1970-1973 | 8 Cylinder 7.4 Liter |
|
|
1970-1972 Chevrolet Chevelle |
Chevelle | 1970-1972 | 8 Cylinder 6.6 Liter |
|
|
1965-1970 Chevrolet Chevelle |
Chevelle | 1965-1970 | 8 Cylinder 6.5 Liter |
|
|
1968 Chevrolet Chevy II |
Chevy II | 1968 | 8 Cylinder 6.5 Liter |
|
|
1970-1974 Chevrolet Corvette |
Corvette | 1970-1974 | 8 Cylinder 7.4 Liter |
|
|
1966-1969 Chevrolet Corvette |
Corvette | 1966-1969 | 8 Cylinder 7.0 Liter |
|
|
1965 Chevrolet Corvette |
Corvette | 1965 | 8 Cylinder 6.5 Liter |
|
|
1970-1975 Chevrolet El Camino |
El Camino | 1970-1975 | 8 Cylinder 7.4 Liter |
|
|
1970-1972 Chevrolet El Camino |
El Camino | 1970-1972 | 8 Cylinder 6.6 Liter |
|
|
1966-1970 Chevrolet El Camino |
El Camino | 1966-1970 | 8 Cylinder 6.5 Liter |
|
|
1970 Chevrolet Estate |
Estate | 1970 | 8 Cylinder 6.6 Liter |
|
|
1970 Chevrolet Estate |
Estate | 1970 | 8 Cylinder 7.4 Liter |
|
|
1969 Chevrolet Estate |
Estate | 1969 | 8 Cylinder 6.5 Liter |
|
|
1969 Chevrolet Estate |
Estate | 1969 | 8 Cylinder 7.0 Liter |
|
|
1996-2000 Chevrolet Express 3500 |
Express 3500 | 1996-2000 | 8 Cylinder 7.4 Liter |
|
|
1973-1974 Chevrolet G10 Van |
G10 Van | 1973-1974 | 8 Cylinder 7.4 Liter |
|
|
1976 Chevrolet G20 |
G20 | 1976 | 8 Cylinder 7.4 Liter |
|
|
1973-1974 Chevrolet G20 Van |
G20 Van | 1973-1974 | 8 Cylinder 7.4 Liter |
|
|
1975-1976, 1988-1996 Chevrolet G30 |
G30 | 1975-1976, 1988-1996 | 8 Cylinder 7.4 Liter |
|
|
1973-1974 Chevrolet G30 Van |
G30 Van | 1973-1974 | 8 Cylinder 7.4 Liter |
|
|
1970-1976 Chevrolet Impala |
Impala | 1970-1976 | 8 Cylinder 7.4 Liter |
|
|
1970-1972 Chevrolet Impala |
Impala | 1970-1972 | 8 Cylinder 6.6 Liter |
|
|
1965-1969 Chevrolet Impala |
Impala | 1965-1969 | 8 Cylinder 6.5 Liter |
|
|
1966-1969 Chevrolet Impala |
Impala | 1966-1969 | 8 Cylinder 7.0 Liter |
|
|
1976, 1980 Chevrolet K10 |
K10 | 1976, 1980 | 8 Cylinder 7.4 Liter |
|
|
1973-1974 Chevrolet K10 Pickup |
K10 Pickup | 1973-1974 | 8 Cylinder 7.4 Liter |
|
|
1970-1972 Chevrolet K10 Pickup |
K10 Pickup | 1970-1972 | 8 Cylinder 6.6 Liter |
|
|
1968-1969 Chevrolet K10 Pickup |
K10 Pickup | 1968-1969 | 8 Cylinder 6.5 Liter |
|
|
1973-1974 Chevrolet K10 Suburban |
K10 Suburban | 1973-1974 | 8 Cylinder 7.4 Liter |
|
|
1970-1972 Chevrolet K10 Suburban |
K10 Suburban | 1970-1972 | 8 Cylinder 6.6 Liter |
|
|
1968-1969 Chevrolet K10 Suburban |
K10 Suburban | 1968-1969 | 8 Cylinder 6.5 Liter |
|
|
1976-1978 Chevrolet K20 |
K20 | 1976-1978 | 8 Cylinder 7.4 Liter |
|
|
1973-1974 Chevrolet K20 Pickup |
K20 Pickup | 1973-1974 | 8 Cylinder 7.4 Liter |
|
|
1970-1972 Chevrolet K20 Pickup |
K20 Pickup | 1970-1972 | 8 Cylinder 6.6 Liter |
|
|
1968-1969 Chevrolet K20 Pickup |
K20 Pickup | 1968-1969 | 8 Cylinder 6.5 Liter |
|
|
1973-1974, 1985 Chevrolet K20 Suburban |
K20 Suburban | 1973-1974, 1985 | 8 Cylinder 7.4 Liter |
|
|
1970-1972 Chevrolet K20 Suburban |
K20 Suburban | 1970-1972 | 8 Cylinder 6.6 Liter |
|
|
1968-1969 Chevrolet K20 Suburban |
K20 Suburban | 1968-1969 | 8 Cylinder 6.5 Liter |
|
|
1991-2000 Chevrolet K2500 |
K2500 | 1991-2000 | 8 Cylinder 7.4 Liter |
|
|
1992-1999 Chevrolet K2500 Suburban |
K2500 Suburban | 1992-1999 | 8 Cylinder 7.4 Liter |
|
|
1977, 1980-1986 Chevrolet K30 |
K30 | 1977, 1980-1986 | 8 Cylinder 7.4 Liter |
|
|
1973-1974 Chevrolet K30 Pickup |
K30 Pickup | 1973-1974 | 8 Cylinder 7.4 Liter |
|
|
1970-1972 Chevrolet K30 Pickup |
K30 Pickup | 1970-1972 | 8 Cylinder 6.6 Liter |
|
|
1968-1969 Chevrolet K30 Pickup |
K30 Pickup | 1968-1969 | 8 Cylinder 6.5 Liter |
|
|
1988-2000 Chevrolet K3500 |
K3500 | 1988-2000 | 8 Cylinder 7.4 Liter |
|
|
1976-1978 Chevrolet K5 Blazer |
K5 Blazer | 1976-1978 | 8 Cylinder 7.4 Liter |
|
|
1970-1972 Chevrolet Kingswood |
Kingswood | 1970-1972 | 8 Cylinder 7.4 Liter |
|
|
1970-1972 Chevrolet Kingswood |
Kingswood | 1970-1972 | 8 Cylinder 6.6 Liter |
|
|
1969 Chevrolet Kingswood |
Kingswood | 1969 | 8 Cylinder 6.5 Liter |
|
|
1969 Chevrolet Kingswood |
Kingswood | 1969 | 8 Cylinder 7.0 Liter |
|
|
1973-1975 Chevrolet Laguna |
Laguna | 1973-1975 | 8 Cylinder 7.4 Liter |
|
|
1973-1975 Chevrolet Malibu |
Malibu | 1973-1975 | 8 Cylinder 7.4 Liter |
|
|
1965-1967 Chevrolet Malibu |
Malibu | 1965-1967 | 8 Cylinder 6.5 Liter |
|
|
1970-1975 Chevrolet Monte Carlo |
Monte Carlo | 1970-1975 | 8 Cylinder 7.4 Liter |
|
|
1970-1972 Chevrolet Monte Carlo |
Monte Carlo | 1970-1972 | 8 Cylinder 6.6 Liter |
|
|
1970-1972 Chevrolet Nova |
Nova | 1970-1972 | 8 Cylinder 6.6 Liter |
|
|
1970-1971 Chevrolet Nova |
Nova | 1970-1971 | 8 Cylinder 7.4 Liter |
|
|
1969-1970 Chevrolet Nova |
Nova | 1969-1970 | 8 Cylinder 6.5 Liter |
|
|
1973 Chevrolet P10 Van |
P10 Van | 1973 | 8 Cylinder 7.4 Liter |
|
|
1976, 1979 Chevrolet P20 |
P20 | 1976, 1979 | 8 Cylinder 7.4 Liter |
|
|
1970-1971, 1973 Chevrolet P20 Van |
P20 Van | 1970-1971, 1973 | 8 Cylinder 7.4 Liter |
|
|
1975-1999 Chevrolet P30 |
P30 | 1975-1999 | 8 Cylinder 7.4 Liter |
|
|
1970-1971, 1973-1974 Chevrolet P30 Van |
P30 Van | 1970-1971, 1973-1974 | 8 Cylinder 7.4 Liter |
|
|
1972 Chevrolet P30 Van |
P30 Van | 1972 | 8 Cylinder 6.6 Liter |
|
|
1987-1988 Chevrolet R20 |
R20 | 1987-1988 | 8 Cylinder 7.4 Liter |
|
|
1987-1988 Chevrolet R20 Suburban |
R20 Suburban | 1987-1988 | 8 Cylinder 7.4 Liter |
|
|
1989 Chevrolet R2500 |
R2500 | 1989 | 8 Cylinder 7.4 Liter |
|
|
1989-1991 Chevrolet R2500 Suburban |
R2500 Suburban | 1989-1991 | 8 Cylinder 7.4 Liter |
|
|
1987-1988 Chevrolet R30 |
R30 | 1987-1988 | 8 Cylinder 7.4 Liter |
|
|
1989-1991 Chevrolet R3500 |
R3500 | 1989-1991 | 8 Cylinder 7.4 Liter |
|
|
1970-1972 Chevrolet Townsman |
Townsman | 1970-1972 | 8 Cylinder 7.4 Liter |
|
|
1970-1972 Chevrolet Townsman |
Townsman | 1970-1972 | 8 Cylinder 6.6 Liter |
|
|
1969 Chevrolet Townsman |
Townsman | 1969 | 8 Cylinder 6.5 Liter |
|
|
1969 Chevrolet Townsman |
Townsman | 1969 | 8 Cylinder 7.0 Liter |
|
|
1987-1988 Chevrolet V20 Suburban |
V20 Suburban | 1987-1988 | 8 Cylinder 7.4 Liter |
|
|
1990 Chevrolet V2500 Suburban |
V2500 Suburban | 1990 | 8 Cylinder 7.4 Liter |
|
|
1987-1988 Chevrolet V30 |
V30 | 1987-1988 | 8 Cylinder 7.4 Liter |
|
|
1989-1991 Chevrolet V3500 |
V3500 | 1989-1991 | 8 Cylinder 7.4 Liter |
|
PROFORM Parts (Specialty Auto Parts of America, Inc.) is a market leader in the high-performance automotive aftermarket, developing, and manufacturing innovative products based on innovative principles. Proform was established in 1983 and its headquarters are located in Warren, Michigan. Their mission is to supply performance enthusiasts with innovative, high quality, and affordable tools, maximizing the customer's value. For over 30 years, Proform has been bringing innovation, quality, and affordability to enthusiasts for over 30 years, with dozens of patents, thousands of SKUs, and millions of delighted consumers. Each Proform component is engineered to maximize performance, value, and style.
PROFORM owns the trademarks for dozens of components and product designs and is constantly developing new products as well as expanding and improving their existing product offerings. They were the first to make affordable, non-remanufactured car parts and accessories widely available and were the first to offer the two-piece timing chain cover, the two-stage in-line fuel filter, HEI distributor tune-up kits, and direct-replacement carburetor main bodies. Furthermore, they were the first to popularize GM Officially Licensed parts with the popular Chevrolet, Bow Tie, and other divisional trademarks, as well as Ford Performance Licensed products with the Ford (sold under the PROFORM Factory Performance Parts designation).
Proform offers unique tools, alternators, stock harmonic balancers, and distributors; a line of roller-tipped rocker arms with the widest selection of manufacturing processes (stamped steel, cast chrome moly, and machined extruded aluminum); and a complete line of popular and easy-to-use engine builders' tools made to intricate specifications.
Proform Parts are engineered to deliver the optimal balance of high quality and economic price value. These prices are the consequence of a skilled and efficient global manufacturing process, not of cost cutting. The experienced management team, product designers, engineers, and manufacturing employees work to service their customers while identifying issues to add value and meeting the demands of the enthusiast with high-quality, low-cost parts.
Proform is the factory source for Licensed Chevrolet Performance Engine Dress Parts, Licensed Ford Performance Products, carburetors, HEI distributors, electric water pumps, electric fans, engine components, and street performance equipment.
Over 1000 engine performance components, including carburetors, rocker arms, HEI distributors, parts for GM, Ford, and Mopar, carburetors, and tools, are manufactured by this company.
Proform's components range from steel or aluminum rollers, wire alternators, wrenches, circuit testers, rotating electrical wires, building tools, starters, vehicle scales, and radiators.
Watch how Proform components are manufactured under high standards of quality.