The HP shim technology increases clampload around the combustion chamber, thereby increasing the sealability of the head gasket around the open deck block.
This Part Fits:
This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1959-1966 | Pontiac | Bonneville | Base |
| 1959-1962 | Pontiac | Bonneville | Custom |
| 1959-1966 | Pontiac | Bonneville | Safari |
| 1964-1966 | Pontiac | Catalina | 2+2 |
| 1959-1966 | Pontiac | Catalina | Base |
| 1959-1966 | Pontiac | Catalina | Safari |
| 1962-1966 | Pontiac | Catalina | Ventura |
| 1962-1966 | Pontiac | Grand Prix | Base |
| 1964-1966 | Pontiac | GTO | Base |
| 1959-1966 | Pontiac | Star Chief | Base |
| 1966 | Pontiac | Star Chief | Executive |
| 1961,1963-1966 | Pontiac | Tempest | Base |
| 1964-1965 | Pontiac | Tempest | Custom |
| 1961 | Pontiac | Tempest | LeMans |
| 1961,1963-1966 | Pontiac | Tempest | Safari |
| 1960-1961 | Pontiac | Ventura | Base |