Upgrade to 5150's Custom Age 625+ Head Stud Kit Built by ARP!
Upgrade to 5150's Custom Age 625+ Head Stud Kit Built by ARP!
Install these ARP Head Studs for Additional Head Clamping Force For Your High Boost N54 Applications
This kit offers increased clamping force and enhanced head gasket sealing, helping to prevent head gasket failure
Ditch the Stock Head Bolts for a Set of Head Studs from ARP!
Includes all the valve stems needed for repairing, replacing, or upgrading your BMW's valves and stem seals!
Two required per valve, necessary for use with certain supertech valves
This product was last offered at the strikethrough price on
04-13-2026
Inconel-Nimonic / Sodium Filled, Std 28mm, set of 12.
Secure your engine with race-proven durability using the ARP Head Stud Kit the top choice for serious BMW performance enthusiasts and professional builders alike.
N55 Engines it is a MUST to drill and tap!
N55 Engines it is a MUST to drill and tap!
The perfect seal for repairing, replacing, or upgrading your valves and stem seals!
Keep your engine clean & free of oil deposits
The perfect seal for repairing, replacing, or upgrading your valves and stem seals!
Inconel-Nimonic / Sodium Filled, oversize 28.50mm (+0.5mm), set of 12.
Two required per valve, necessary for use with certain supertech valves