ARP 135-3603 Cylinder Head Bolts Kit for Chevrolet Big Block w/ Iron/Aluminum Dart

ARP 135-3603 Cylinder Head Bolts, High Performance, Hex Head, Chevy, Big Block, with Aftermarket Heads, Kit Undercut Stud: No Head Style: 12-point Fastener Material: 8740 chromoly Fastener Finish: Black oxide Washers Included: Yes Cut to Fit: No Pro series cylinder head studs from ARP are cold-forged to ensure molecular integrity. They are heat-treated prior to thread rolling and machining and are rated at a whopping 220,000 psi. ARP Pro series kits are also available with 12-point nuts, and all kits come complete with hardened parallel washers for an even load distribution and accurate torque readings.