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. All Stage 8 Locking Header Bolt Kits are sold with all of the necessary hardware for your application. 6pt Double Hex Head style bolts. Note product may vary from image.
- Fits All AMC 304-401 V8 engines
- Will Only Fit Engines that have only 3/8" bolts on the manifold
- Includes (12) 3/8-16x1" 6pt Double Hex Head bolts
- Nickel Plated
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