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:
- 1982-1985 BUICK CENTURY V6 4.3
- 1985-1985 BUICK ELECTRA V6 4.3
- 1982-1985 BUICK REGAL V6 4.3
- 1985-1985 CADILLAC DEVILLE V6 4.3
- 1985-1985 CADILLAC FLEETWOOD V6 4.3
- 1985-2005 CHEVROLET ASTRO V6 4.3
- 1995-2005 CHEVROLET BLAZER
- 1985-1986 CHEVROLET C10 V6 4.3
- 1988-1998 CHEVROLET C1500 V6 4.3
- 1985-1986 CHEVROLET C20 V6 4.3
- 1988-1995 CHEVROLET C2500 V6 4.3
- 1985-1993 CHEVROLET CAPRICE V6 4.3