ARP GM LS7 Balancer Bolt Kit - 12 Point Sparco 6 5/8" length spring is

6 5/8" length spring is needed

AFCO replacement weight jack bolts are precisely cut for quick adjustment

Belts feature an easy push-button release and are sold each

Includes Hardware

shock resistant

ARP GM LS7 Balancer Bolt Kit - 12 Point Sparco 6 5/8" length spring isARPs 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: Harmonic Balancer Bolt 16