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:
- 1997-2004 FORD CROWN VICTORIA
- 1997-2004 FORD E-150 ECONOLINE V8 4.6 5.4
- 1997-2004 FORD E-250 ECONOLINE V8 5.4
- 1998-2004 FORD E-350 ECONOLINE V8 5.4
- 2000-2004 FORD EXCURSION V8 5.4
- 1997-2004 FORD EXPEDITION
- 2002-2004 FORD EXPLORER V8 4.6
- 1997-2004 FORD F-150 V8 4.6 5.4
- 2004-2004 FORD F-150 HERITAGE V8 4.6 5.4
- 1997-1999 FORD F-250 4.6 5.4
- 1999-2004 FORD F-250 SUPER DUTY V8 5.4
- 1999-2004 FORD F-350 SUPER DUTY V8 5.4