ARP / Titan L19 1/2" Head Stud Kit -- 2JZ-GE/GTE

The ARP / TMS Head Studs are manufactured from L-19 material (which is stronger than the standard 8740 chromemoly steel) heat treated to 260,000 ksi tensile strength, and precision j-form threads rolled after heat-treat to create a fastener that has incredibly strong threads. All kits come complete with hardened parallel-ground washers and aerospace quality nuts.