| Brand | ARP |
|---|---|
| Type | Fasteners Hardware > Engine Fasteners and Hardware |
| Manufacturer Part Number | 155-4201 |
| Manufacturer Warranty | Manufacturer's Limited 90 Day |
| UPC | 672036004309 |
Check the listing for details. ARP 155-4201 390-428 12 Point Head Stud Kit. Condition: New. Listed at 216.83 USD. Compatible with BB Ford® 390-428; 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 8740 alloy and a proprietary ARP2000® alloy that are rated far superior to "aircraft" quality alloy steels. Secondly, each stud is placed vertically into special racks and precisely heat-treated to 190,000 psi for the 8740 material and 220,000 psi for the ARP2000® material.