ARP Main Stud Kit for RB20 & RB25
ARP uses premium grade materials that are far superior to '' aircraft '' quality. Each fastener is precisely heat treated and then is centerless ground to make it as close to perfectly concentric as possible.
Main Studs Key Features:
- Premium grade 8740 chrome moly steel
- 200,000 psi tensile strength
- J-form rolled threads
- Come with parallel washers and nuts