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 383-440 (Does not Fit 426 Hemi) Pontiac 326-455 Oldsmobile 330-455
Product Features:
Grade 8 Steel
Black Oxide Coating
Allen Head
(12) Pieces Per Set
Specifications
Brand:
Mr. Gasket
Color:
Black
Finish:
Black Oxide
Material:
Steel
Product Type:
Header Bolts
Size:
3/8-16 x 3/4
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