Special Order
COMP's Positive Stop PTFE valve seals offer more clearance for dual springs with better sealing than o-ring or umbrella seals. These 503 seals have a .630" outer diameter and fit applications with 11/32" valves and .530" OD valve guides.
For more than 35 years, the COMP Cams(R) mission has never changed: to produce the highest-performing products possible, provide customers with superior service, and to lead the industry in technological development. While the COMP Performance Group(TM) has grown to multiple companies and hundreds of employees, we still retain the competitive spirit and desire to be the very best that has positioned COMP Cams(R) as the absolute leader in valve train components.
For more than 35 years, the COMP Cams(R) mission has never changed: to produce the highest-performing products possible, provide customers with superior service, and to lead the industry in technological development. While the COMP Performance Group(TM) has grown to multiple companies and hundreds of employees, we still retain the competitive spirit and desire to be the very best that has positioned COMP Cams(R) as the absolute leader in valve train components.
- Positive Stop Teflon
- 1 Year Limited Warranty
Application Summary:
| Year | Make/Model |
|---|---|
| 1975 | Buick Apollo |
| 1977-1989 | Buick Century |
| 1975-1987 | Buick Electra |
| 1975-1983 | Buick Estate Wagon |
| 1975-1990 | Buick LeSabre |
| 1977-1981 | Buick Regal |
| 1986-1987 | Buick Regal |
| 1975-1985 | Buick Riviera |
| 1975-1989 | Buick Skylark |
| 1986-1987 | Buick Somerset |
| 1985 | Buick Somerset Regal |
| 1987-1990 | Cadillac Brougham |
| 1968-1976 | Cadillac Calais |
| 1975-1979 | Cadillac Commercial Chassis |
| 1968-1979 | Cadillac DeVille |
| 1968-1978 | Cadillac Eldorado |
| 1968-1979 | Cadillac Fleetwood |
| 1986 | Cadillac Fleetwood |
| 1985-1989 | Chevrolet Astro |
| 1955-1975 | Chevrolet Bel Air |
| 1958-1972 | Chevrolet Biscayne |
| 1969-1974 | Chevrolet Blazer |
| 1987-1994 | Chevrolet Blazer |
| 1969-1972 | Chevrolet Brookwood |
| 1975-1986 | Chevrolet C10 |
| 1961-1974 | Chevrolet C10 Pickup |
| 1968-1986 | Chevrolet C10 Suburban |
| 1988-1995 | Chevrolet C1500 |
| 1992-1995 | Chevrolet C1500 Suburban |
| 1975-1986 | Chevrolet C20 |
| 1961-1974 | Chevrolet C20 Pickup |
| 1968-1986 | Chevrolet C20 Suburban |
| 1988-1995 | Chevrolet C2500 |
| 1992-1995 | Chevrolet C2500 Suburban |
| 1975-1986 | Chevrolet C30 |
| 1961-1974 | Chevrolet C30 Pickup |
| 1988-1995 | Chevrolet C3500 |
| 1967-1973 | Chevrolet Camaro |
| 1975-1992 | Chevrolet Camaro |
| 1966-1993 | Chevrolet Caprice |
| 1982-1989 | Chevrolet Celebrity |
| 1964-1973 | Chevrolet Chevelle |
| 1963-1968 | Chevrolet Chevy II |
| 1980-1983 | Chevrolet Citation |
| 1984-1985 | Chevrolet Citation II |
| 1955-1972 | Chevrolet Corvette |
| 1974-1982 | Chevrolet Corvette |
| 1984-1991 | Chevrolet Corvette |
| 1958 | Chevrolet Del Ray |
| 1959-1960 | Chevrolet El Camino |
| 1964-1987 | Chevrolet El Camino |
| 1975-1995 | Chevrolet G10 |
| 1968-1974 | Chevrolet G10 Van |
| 1975-1995 | Chevrolet G20 |
| 1968-1974 | Chevrolet G20 Van |
| 1975-1996 | Chevrolet G30 |
| 1970-1974 | Chevrolet G30 Van |
| 1959-1985 | Chevrolet Impala |
| 1975-1986 | Chevrolet K10 |
| 1961-1974 | Chevrolet K10 Pickup |
| 1968-1986 | Chevrolet K10 Suburban |
| 1988-1995 | Chevrolet K1500 |
| 1992-1995 | Chevrolet K1500 Suburban |
| 1975-1986 | Chevrolet K20 |
| 1961-1974 | Chevrolet K20 Pickup |
| 1968-1986 | Chevrolet K20 Suburban |
| 1988-1995 | Chevrolet K2500 |
| 1992-1995 | Chevrolet K2500 Suburban |
| 1977-1986 | Chevrolet K30 |