These head stud kits feature premium ARP 2000 material rated at 220,000 psi tensile strength. (Not 8740 material as all previous kits)

They are heat-treated before thread rolling and machining.

The pro series kits are also available with a 12-point nut, and all kits come complete with hardened parallel washers for an even load distribution and accurate torque readings.

SKU: ARP-TB48-H