COMP Cams Big Block Chevy Crank Nut is a two-piece assembly that allows you to turn your engine in either direction using a large diameter socket. This convenient tool is heavy-duty and hear-treated. This crank nut provides a secure method of attachment for the harmonic damper and other parts.

Product Features:

• Two-piece assembly will allow you to turn engine in either direction using a large diameter socket
• Heavy-duty, heat-treated and convenient
• Provides secure method of attachment for harmonic dampers
• For Big Block Chevy applications