ARP Bmc/Triumph A Series, 11 studs, shaved head 8740 – Head Stud Kit, 12-Point Nut AR206-4206 Product:fits BMC A-Series, 11 Studs With Shaved Head 2% of an instantaneous temperature

2% of an instantaneous temperature change

Both Models Feature A Large Diameter

Very popular with larger sport coupe that require wider rim width

3/8" Thread x 2

ARP Bmc/Triumph A Series, 11 studs, shaved head 8740 – Head Stud Kit, 12-Point Nut AR206-4206 Product:fits BMC A-Series, 11 Studs With Shaved Head 2% of an instantaneous temperatureHead Stud Kit, 12 Point Nutfits BMC A Series, 11 Studs With Shaved Head Brand: ARP Part Number: AR206 4206 Description: It is for good reason that virtually every top professional engine builder relies on ARP Pro Series head studs for their all out competition powerplants. Simply stated, there's not a better stud setup on the market today. For openers, ARP only uses premium grade 8740 alloy and a proprietary ARP2000 alloy that are rated far superior