Stage 8 8916A Locking Header Bolts 3/8-16 in - 1.000 Long - Hex Head - Set of 12

Compatible with Big Block Chrysler, Pontiac, Oldsmobile, AMC. This product is not created or sold by Chrysler or GM;

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.

Header bolt kits are application specific. These have a hex head with a 3/16 recessed Allen head. All Stage 8 Locking Header Bolt Kits are sold with all of the necessary hardware for your application.;