ARP’s head studs are widely recognized as an industry leader in competition powerplants. By using premium grade 8740 alloy combined with a meticulous heat treatment, ARP produces head studs far superior than others on the market. With good reason, ARP is the favorite of leading professional engine builders.
- Premium quality 8740 alloy
- Precisely heat-treated to 190,000 psi
- Centerless grounded (as close to perfectly concentric as possible)
- Threaded post heat-treatment