BBC W/DARTCHV BWTIE ALUM

High Performance head bolts are available with a reduced wrenching hex or 12 point and wide area flanged head that eliminates the need for valve train removal to facilitate cylinder head retorquing. All High Performance Series bolts are 180,000 PSI (which is 15 Percent stronger than Grade 8) and kits come complete with hardened parallel ground washers. Engine Compatibility : Chevy Big Block V8 396402427454 Cubic Inch Head Type : Hex Finish : Black Oxide Color : Black Material : Chrome Moly Steel Washer Style : Hardened Parallel Ground Bolt Style : No Under Cut Tensile Strength : 180000 Pounds Per Square InchWARNING : Cancer and Reproductive Harm www.P65Warnings.ca.gov.