Specially designed for 2-piece rear main blocks, The aero-wing counterweights increase horsepower by reducing windage, Features straight shot oil holes and is externally balanced, There are lightening holes in all rod throws, Each crankshaft is precision ground and micro polished.
This product would be ideal for individuals who own a Chevy vehicle equipped with a crankshaft in need of an upgrade, specifically with a 940050 bolt pattern size.