ARP Harmonic Balancer Bolt - 1/2-20 in Thread - 1.550 in Long - 13/16 in 12 Point Head - Chromoly - Black Oxide - Big Block Chevy 33010BL An internal pressure build up

An internal pressure build up will affect your reading

1993-1995 GMC B7

Improper installation will void your warranty and may result in poor performance and engine or vehicle damage

Each EZ-Run has a built-in ignition module for simple plug and play installation

ARP Harmonic Balancer Bolt - 1/2-20 in Thread - 1.550 in Long - 13/16 in 12 Point Head - Chromoly - Black Oxide - Big Block Chevy 33010BL An internal pressure build upARPs 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