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 and black oxide coated.

If you've ever had a set of headers where a socket just seemed it wouldn't fit these might be your answer. These bolts also have a socket head or Allen key drive in the center for just that problem.

• Sold as a set of 12
• Fits:
• AMC 290-401
• Chevrolet Small Block 262-400
• Chrysler Big Block 38 Inch-440 (Does not Fit 426 Hemi)
• Pontiac 326-455
• Oldsmobile 330-455
• Grade 8 InchSteel
• Black Oxide Coating
• Allen Head
• (12) Pieces Per Set

Details:

• Color: Black
• Emission Code: 5
• Finish: Black Oxide
• Material: Steel
• Size: 3/8-16 x 3/4
• Warranty: Manufacturer's Limited 1 Year Warranty