Header Bolts -3/8-16 x 1 Inch Hex Head Black Oxide Fits AMC 290-401, Chevrolet Small Block 262-400, Chrysler 383-440 except Hemi, Pontiac 326-455, Oldsmobile 330-455 Mr Gasket

Part #: 917

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 38 Inch-440 (Does not Fit 426 Hemi)Pontiac 326-455Oldsmobile 330-455Has A Black Oxide CoatingMade Of High Quality Grade-5 SteelHave A Hex Head With FlangeDesigned For Minimal Clearance Applications12 per PackageDetails:Color: BlackEmission Code: 5Finish: Black OxideMaterial: SteelSize: 3/8-16 x 1Warranty: Manufacturer's Limited 1 Year Warranty

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

Header Bolt - 3/8-16 in Thread - 1.000 in Long - Allen Head - Steel - Black Oxide - AMC V8 / GM V8 / Mopar B / RB-Series - Set of 12