ARP Harmonic Balancer Bolt - 1/2-20 in Thread - 1.550 in Long - 5/8 in 12 Point Head - Chromoly - Black Oxide - Big Block Chevy Racing Boot Heat Shield Optimized street/strip calibration for outstanding

Optimized street/strip calibration for outstanding throttle response and drivability

Auto / Manual Transmission

300' length

Add Vehicle Dynamics Module for GPS

Designed for Sprint Cars

ARP Harmonic Balancer Bolt - 1/2-20 in Thread - 1.550 in Long - 5/8 in 12 Point Head - Chromoly - Black Oxide - Big Block Chevy Racing Boot Heat Shield Optimized street/strip calibration for outstandingARPs 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 1 2