ARP Diesel Head Stud Kit arp250-4201 94-03 7.3
ARP was the first company to design and engineer fasteners specifically for racing. ARP developed many patented process for manufacturing high strength fasteners from very strong materials. They have continued to improve their processes and quality control and now manufacturing operations are ISO 9001 and AS9100 registered. There's not another company in the world that is as focused on building superior quality fasteners for all forms of racing and non-racing applications.