Engine Crankshaft Turning Nut Fits Big Block Chevy Engine Crankshafts Proform proform mount your cylinder head boss

mount your cylinder head boss underneath the blade and cut away

Pneumatic Engine Valve Spring Compressor

mating weathertight connector

These pushrods are manufactured with one end having a heat-treated insert

Engine Crankshaft Turning Nut Fits Big Block Chevy Engine Crankshafts Proform proform mount your cylinder head bossThis heavy duty crankshaft turning nut easily installs through the harmonic balancer and into the end of the crankshaft with the included grade 8 bolt. Once that's done, your balancer is held securely, and you have turning nut that is ready to rotate whenever necessary. Features: Heavy Duty Model Fits Big Block Chevy Engine Crankshafts Made from High Quality Steel Black Oxide Finish 1 inch Stud Length Sold Individually