ARP fasteners Single Head / Main Stud ARAR5.250-1LB Product:1/2" Thread X 5.250" OAL Center Cap (sold separately)

Center Cap (sold separately)

165" diameter intake valves and 1

Includes External inline pump

Overall Width: 55mm

ARP fasteners Single Head / Main Stud ARAR5.250-1LB Product:1/2" Thread X 5.250" OAL Center Cap (sold separately)Single Head Main Stud1 2" Thread X 5. 250" OAL Brand: ARP Part Number: ARAR5. 250 1LB 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 to "aircraft" quality