Head Bolt Kits
The Ultimate 7/16″ARP head bolt. Made of 8740 alloy steel, heat treated, chamfered, shank ground and washer pad under 12-point socket head. Bolt has 190,000 psi tensile strength and secures cylinder heads to block as well as studs. Set of 20 bolts and chamfered washers. Fits all Oldsmobile V8’s except diesel. Does not include accessory bolts.