BMW E46 M3 / S54. That’s why ARP head studs are popular among leading Sport Compact/Import racers. You should know that ARP uses a premium grade 8740 alloy that is rated far superior to \u201caircraft” quality.
ARP Head Studs BMW M50 2.5L 201-4302
ARP Head Studs BMW E46 M3 / S54 2.5L 201-4303
ARP Head Studs w/12-Point Nuts (U/Cut Studs) Big Block Chevy 454-502 Cast Iron
ARP Head Studs w/12-Point Nuts (U/Cut Studs) Big Block Chevy, Dart Big Chief