ARP Head Studs are as essential as Engine Oil When Building a Turbo or High Compression 5/6m Motor. If you want to ensure your block and head stay as tight and sealed as possible ensure you use ARP Head Studs on your 5m/6m.
ARP uses premium grade 8740 alloy that is rated far superior to aircraft quality. Each stud is precisely heat-treated to 200,000 psi. Please note that although it's a fine product ARP Head Bolts will NOT work on your 5m/6m head; there is simply not enough thread.
