1983 – 1987 6.9L Ford International ARP Head Stud Kit
ARP # 150-4069
ARP head studs are a premium grade 8740 alloy that is rated far superior to “aircraft” quality. Each stud is placed vertically in special racks and precisely heat-treated to 200,000psi. This ensures complete heat penetration. All studs are thread rolled after heat-treat.