Fits GM BB 396-502 exc 348 and 409, Ford 5.0L, SB 289-302-351W, Mopar 414
PROFORM Wedge-Locking Header Bolts ELIMINATE the need to constantly re-tighten collector bolts, and without the need for clips, pins, racing-wire, chemicals or gunk. The secret is in the Wedge-Locking Washer's super-hardened external teeth that "bite" into the bottom of the bolt head and the top flange surface. Vibrations that normally cause other bolts to loosen, are blocked by the wedge-locking action that uses tension, instead of friction to stay snug. In fact, contact with oil actually facilitates the effect. Installs/uninstalls with a normal wrench, lubricate, and then reuse. Each set comes with sixteen Hex Head, Grade 8 (12.9) steel bolts (3/8"-16 thread, 1" long) with a black oxide finish, and pre-assembled Wedge-Locking Washers.
PROFORM Wedge-Locking Header Bolts ELIMINATE the need to constantly re-tighten collector bolts, and without the need for clips, pins, racing-wire, chemicals or gunk. The secret is in the Wedge-Locking Washer's super-hardened external teeth that "bite" into the bottom of the bolt head and the top flange surface. Vibrations that normally cause other bolts to loosen, are blocked by the wedge-locking action that uses tension, instead of friction to stay snug. In fact, contact with oil actually facilitates the effect. Installs/uninstalls with a normal wrench, lubricate, and then reuse. Each set comes with sixteen Hex Head, Grade 8 (12.9) steel bolts (3/8"-16 thread, 1" long) with a black oxide finish, and pre-assembled Wedge-Locking Washers.
Information:
16 PcsApplication Summary:
| Year | Make/Model |
|---|---|
| 1999 | Chevrolet B7 |
| 1965-1975 | Chevrolet Bel Air |
| 1965-1972 | Chevrolet Biscayne |
| 1973-1974 | Chevrolet Blazer |
| 1969-1972 | Chevrolet Brookwood |
| 1975-1980 | Chevrolet C10 |
| 1968-1974 | Chevrolet C10 Pickup |
| 1968-1980 | Chevrolet C10 Suburban |
| 1990-1993 | Chevrolet C1500 |
| 1975-1986 | Chevrolet C20 |
| 1968-1974 | Chevrolet C20 Pickup |
| 1968-1986 | Chevrolet C20 Suburban |
| 1991-1999 | Chevrolet C2500 |
| 1992-1999 | Chevrolet C2500 Suburban |
| 1975-1986 | Chevrolet C30 |
| 1968-1974 | Chevrolet C30 Pickup |
| 1988-1999 | Chevrolet C3500 |
| 1991-1999 | Chevrolet C3500HD |
| 1969 | Chevrolet C50 |
| 1968-1969 | Chevrolet C60 |
| 1999 | Chevrolet C6500 Kodiak |
| 1979-1980 | Chevrolet C70 |
| 1999 | Chevrolet C7500 Kodiak |
| 1967-1972 | Chevrolet Camaro |
| 1966-1976 | Chevrolet Caprice |
| 1965-1973 | Chevrolet Chevelle |
| 1968 | Chevrolet Chevy II |
| 1965-1974 | Chevrolet Corvette |
| 1966-1975 | Chevrolet El Camino |
| 1969-1970 | Chevrolet Estate |
| 1996-1999 | Chevrolet Express 3500 |
| 1973-1974 | Chevrolet G10 Van |
| 1976 | Chevrolet G20 |
| 1973-1974 | Chevrolet G20 Van |
| 1975-1976 | Chevrolet G30 |
| 1988-1996 | Chevrolet G30 |
| 1973-1974 | Chevrolet G30 Van |
| 1993-1996 | Chevrolet GP3500 |
| 1965-1976 | Chevrolet Impala |
| 1976 | Chevrolet K10 |
| 1980 | Chevrolet K10 |
| 1968-1974 | Chevrolet K10 Pickup |
| 1968-1974 | Chevrolet K10 Suburban |
| 1976-1978 | Chevrolet K20 |
| 1968-1974 | Chevrolet K20 Pickup |
| 1968-1974 | Chevrolet K20 Suburban |
| 1985 | Chevrolet K20 Suburban |
| 1991-1999 | Chevrolet K2500 |
| 1992-1999 | Chevrolet K2500 Suburban |
| 1977 | Chevrolet K30 |
| 1980-1986 | Chevrolet K30 |
| 1968-1974 | Chevrolet K30 Pickup |
| 1988-1999 | Chevrolet K3500 |
| 1976-1978 | Chevrolet K5 Blazer |
| 1969-1972 | Chevrolet Kingswood |
| 1973-1975 | Chevrolet Laguna |
| 1965-1967 | Chevrolet Malibu |
| 1973-1975 | Chevrolet Malibu |
| 1970-1975 | Chevrolet Monte Carlo |
| 1969-1972 | Chevrolet Nova |
| 1973 | Chevrolet P10 Van |
| 1976 | Chevrolet P20 |
| 1979 | Chevrolet P20 |
| 1970-1971 | Chevrolet P20 Van |
| 1973 | Chevrolet P20 Van |
| 1975-1999 | Chevrolet P30 |
| 1970-1974 | Chevrolet P30 Van |
| 1987-1988 | Chevrolet R20 |
| 1987-1988 | Chevrolet R20 Suburban |
| 1989 | Chevrolet R2500 |
| 1989-1991 | Chevrolet R2500 Suburban |
| Attributes | |
| Applications | Fits GM BB 396-502 exc 348 and 409, Ford 5.0L, SB 289-302-351W, Mopar 413, Fits GM BB 396-502 exc 348 and 409, Ford 5.0L, SB 289-302-351W, Mopar 413 |
| California Proposition 65 | No |
| Category | Header Bolts, Header Bolts |
| Color | Black Oxide, Black Oxide |
| Country of Origin (Primary) | TW |
| Diameter | 3/8-in., 3/8-in. |
| Emission Code | Legal US |
| Feature/Benefit | Wedge-Locking Technology, Easy to use, No special clips or adhesives needed, Wedge-Locking Technology Eliminates Constantly Re-Tightening Exhaust Collector Bolts; Blocks Bolt-Loosening Rotation caused by Vehicle Vibrations., Reusable, Backed by a full 30 day limited factory warranty. |
| Finish | Black Oxide, Black Oxide |
| Harmonized Tariff Code (Schedule B) | 7318159000 |
| Hazardous Material Code | N |
| Length | 1 inch |
| Life Cycle Status Code | Available to Order |
| Material | Steel, Steel |
| NAFTA Preference Criterion Code | B |
| Part Type | Header Bolts, Header Bolts |
| SDR Required Flag | N |
| Warranty Time | 1 |
| GTIN | 00037995667567 |