Mr Gasket 916 Header Bolts Socket Head 3/8"-16 x 0.75" 12 pc.

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.\nSold as a set of 12\nFits:\nAMC 290-401\nChevrolet Small Block 262-400\nChrysler Big Block 383-440 (Does not Fit 426 Hemi)\nPontiac 326-455\nOldsmobile 330-455