Upgrade to 5150's Custom Age 625+ Head Stud Kit Built by ARP!
N55 Engines must be drilled & tapped for proper installation
Upgrade to 5150's Custom Age 625+ Head Stud Kit Built by ARP!
N55 Engines must be drilled & tapped for proper installation
Ditch the Stock Head Bolts for a Set of Head Studs from ARP!
M7X68MM
This product was last offered at the strikethrough price on
07-06-2026