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.
TAll Stage 8 Locking Header Bolt Kits are sold with all of the necessary hardware for your application.
Fits Pre-2005 Ford 4.6/5.4L Engines
8mm x 1.25
25mm Long
Set of 16
Nickel Plated
Hex Head w/ Allen Key
