Manufacturer: Proform. Proform 67427 Engine Crankshaft Turning Nut; Fits Big Block Chevy Engine Crankshafts. This heavy duty crankshaft turning nut easily installs through the harmonic balancer and into the end of the crankshaft with the included grade 8 bolt.
This product would be ideal for mechanics and DIY enthusiasts looking to adjust or replace the crankshaft turning nut for their Big Block Chevy engine.