When installing headers you will need header bolts, factory exhaust manifold bolts won't work. These Mr. Gasket Header Bolts are Grade 5 for strength, black oxide coated, and have a compact hex head that is ideal for use where space is minimal - your typical header flanges.Sold as a set of 12.Fits: AMC 290-401Chevy Small Block 262-400Chrysler Big Block 383-440 (Does not Fit 426 Hemi)Pontiac 326-455Oldsmobile 330-455
Features:
- Has A Black Oxide Coating
- Made Of High Quality Grade-5 Steel
- Have A Hex Head With Flange
- Designed For Minimal Clearance Applications
- 12 per Package