ARP - BBC Square Drive Damper Bolt Kit

Upgrade your engine assembly with the ARP BBC Square Drive Damper Bolt Kit. This precision-engineered kit includes a harmonic balancer bolt featuring a 1/2-20 in thread, 1-1/8 in hex head, and a 1/2 in square drive. Constructed from high-strength chromoly steel and finished with a black oxide coating, it is designed to endure extreme conditions and provide maximum clamping force. The extra tall 12-point head ensures easy installation, while the built-in square drive allows for convenient engine rotation with a standard 1/2˝ ratchet or breaker bar. Ideal for Big Block Chevy applications, this kit ensures your harmonic damper remains securely in place, minimizing the risk of engine damage while enhancing performance.