ARP Main Stud Kit Ford B5254 5-cylinder 2.5L, 2005 & Later Kit #: 251-5801

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