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
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!
Make sure you are getting the proper hardware for the job
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
This product was last offered at the strikethrough price on
10-09-2026
Make sure you are getting the proper hardware for the job
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
This product was last offered at the strikethrough price on
06-03-2026
ARP is the world leader in fastener technology.
Stud conversion set up with 12 point fastening nuts
M7X33.5
Includes bolts to do one cylinder head
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
This product was last offered at the strikethrough price on
10-25-2026
Make sure you are getting the proper hardware for the job
This product was last offered at the strikethrough price on
05-07-2026
This special long, thin, Torx socket is required for removal and installation of the head bolts on most BMWs with twin-cam cylinder heads.
10X Entries Into Our F80 M3 Sweepstakes
This product was last offered at the strikethrough price on
05-02-2026
A complete set of one time use head bolts
2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!
A complete set of one time use head bolts
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
This product was last offered at the strikethrough price on
10-25-2026
For use in conjunction with cylinder head bolts