We recommend this head stud kit for normally aspirated engines with up to 13:1 compression! Above 13:1 compression and with boost above 15psi we recommend using the 10mm Custom Age 625+ head stud kit, or our 12mm H.D. head stud kit upgrade.
10pcs 200,000 psi 10mm head studs
10pcs 12pt 10mm nuts
10pcs Flat Ground 10mm washers
ARP Ultra-Torque Assembly Lube
Torque to 65ft.lbs. in 3 steps, 30-40-65lbs.
