ARP Ford Main Stud Kit - Inline 6 HALCL26XS Large stem for 5/8" hole

Large stem for 5/8" hole is the most popular size valve stem used in racing wheels

Bushing design reduces or absorbs shock when suspension is limited and helps reduce tire unloading

 liquid filled fuel pressure gauge

GM LS3/L76 kit

The Pro-Series Regulator

ARP Ford Main Stud Kit - Inline 6 HALCL26XS Large stem for 5/8" holeARPs product line contains thousands of part numbers, and has expanded to include virtually every fastener found in an engine and driveline. These range from quality high performance OEM replacement parts to exotic specialty hardware for Formula 1, IndyCar, IMSA, NASCAR and NHRA drag racing and marine applications. Since 1968, ARP is the fastener of champions and the world leader in fastener technology. Product Description: Main Stud Kit Hex Nuts 2