Stage 8 Locking Header Bolts easy to use and they are real assurance against horsepower loss or gasket failure created by loose nuts or bolts. The unique patented and trademarked functional design is just three pieces: a bolt (4130 Alloy Steel), a locking retainer and a spring clip. The header bolt kits are application specific as either hex head with a 3/16 recessed allen head or 12 point, USA or metric. All Stage 8 Locking Header Bolt Kits are sold with all of the necessary hardware for your application.
Application:
- 1965-1969 CHEVROLET 396 BIG BLOCK
- 1970-1972 CHEVROLET 402 BIG BLOCK
- 1966-1969 CHEVROLET 427 BIG BLOCK
- 1970-1976 CHEVROLET 454 BIG BLOCK
- 1985-2010 CHEVROLET 502 BIG BLOCK BASE V8 8.2 CARB N
- 1963-1969 CHEVROLET BEL AIR V8 7.0
- 1965-1969 CHEVROLET BEL AIR V8 6.5
- 1970-1972 CHEVROLET BEL AIR V8 6.6
- 1963-1969 CHEVROLET BISCAYNE V8 7.0
- 1965-1969 CHEVROLET BISCAYNE V8 6.5
- 1970-1972 CHEVROLET BISCAYNE V8 6.6
- 1969-1969 CHEVROLET BROOKWOOD V8 6.5