ARP Header Bolt - 8 mm x 1.25 Thread - 0.984 in Long - Hex Head - Polished - GM LS-Series - Set of 12 AutoLoc Linear spring rates

Linear spring rates

9-1/2 x 9-3/8

83-05 6 Pontiac cyl

Safe with 02 Sensors

2" radius J-Bends

ARP Header Bolt - 8 mm x 1.25 Thread - 0.984 in Long - Hex Head - Polished - GM LS-Series - Set of 12 AutoLoc Linear spring ratesARPs 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: Header Bolt 8 mm x 1. 25