Overview 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 hex head that is ideal for use where space is minimal - your typical header flanges. Ever had a set of headers where a socket just seemed it wouldn't fit? 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 Fits AMC 290-401, Chevrolet Small Block 262-400, Chrysler 383-440 except Hemi, Pontiac 326-455, Oldsmobile 330-455 Features Made From High Strength Steel Corrosion Resistant Black Coating Has Both Socket And Hex Heads For Ease Of Use 12 per Package
