ARP 135-3606 Cylinder Head Bolts Kit for Mark IV Chevrolet Big Block w/ Brodix -2 -4 Canfield World

ARP 135-3606 Cylinder Head Bolts, High Performance, Hex Head, Chevy, Big Block, with Brodix Aluminum, Canfield Heads, Kit Fastener Style: Bolt Undercut Stud: No Head Style: Hex Fastener Material: Chromoly Fastener Finish: Black oxide Washers Included: Yes Cut to Fit: No   These ARP High Performance series head bolt kits are tough! They are rated at 170,000 psi--15 percent stronger than Grade 8 fasteners. They come available with hex heads or reduced wrenching 12-point heads that eliminate the need for valvetrain removal when re-torquing cylinder heads.