ARP uses premium grade 8740 alloy that is rated far superior to that of supposed "aircraft" quality. The ARP high tensile strength stud sets are superior to OEM head bolts and can be reused unlike factory stretch hardware.
ARP Head Bolt Set 190-3605; Hex Head Chromoly for Pontiac 400-455 Edelbrock Head
Arp Auto Racing 208 4301 Arp 2084301 Head Stud Kit
ARP Single Head Stud - 7/16 x 5 ARP AP5.000
ARP - ARP Cylinder Head Stud Kit - 2014301
ARP ARP Hi-Performance Head Bolt Kits
ARP Head Studs& Bolt Kit for Gm 6.2 Ls LSA ARP- 234-4346 Pro Series Cylinder Kit
