Intoducing the Custom Age 625+ head studs from SPEED PERF6RMANC3. These studs have an even higher UTS closer to the 280,000 psi limit of the material versus the 8740 ARP 200,000 psi. We also upgraded the nuts in our head stud package to a heat treated version which have a lower failure rate when paired with an equally heat treated stud.
Our 10mm head stud kit comes with upgraded nuts and washers along with a special assembly lube that has been tested to provide the most accurate torque spec of any lube on the market. These are only available through SPEED PERF6RMANC3 and don’t stay in stock very long!
These Head Studs require modification to engine block