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A must-have for any motor seeing over 20 psi! These ARP head studs won’t stretch like the stock bolts and will dramatically decrease the chanced of head gasket failure.
ARP uses a premium grade 8740 alloy that is rated far superior to “aircraft” quality. Then, each stud is placed vertically in special racks and precisely heat-treated to 190,000 psi. This procedure ensures complete heat penetration and the results are far superior to those lesser quality studs from other manufacturers who just dump pieces in a basket and hope for the best.
- 1994.5-1999 DSM – 7 Bolt 4G63T Engines
- 2003-2006 Mitsubishi Evolution 8/9