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:
- 1966-1967 FORD BRONCO L6 3.9
- 1980-1992 FORD BRONCO L6 4.9
- 1965-1967 FORD CLUB WAGON L6 3.9
- 1965-1972 FORD COUNTRY SEDAN L6 3.9
- 1965-1972 FORD COUNTRY SQUIRE L6 3.9
- 1965-1972 FORD CUSTOM L6 3.9
- 1965-1972 FORD CUSTOM 500 L6 3.9
- 1968-1974 FORD E-100 ECONOLINE L6 3.9
- 1972-1983 FORD E-100 ECONOLINE L6 4.9
- 1975-1991 FORD E-150 ECONOLINE L6 4.9
- 1968-1974 FORD E-200 ECONOLINE L6 3.9
- 1972-1974 FORD E-200 ECONOLINE L6 4.9