Specifically designed for Small Block Chevy's with 2-piece rear main blocks, Made from 4340 forged steel and weighs only 53 lbs., Has straight shot & chamfered oil holes, It is nitride hardened for superior wear resistance, Has lightening holes in all rod throws and a large radius on all journals.
The Scat 4-350-3875-6000 product is designed for custom engine builders who want to fit a 3.875-inch stroke, 4340 forged crankshaft to their Chevy 4340 vehicles.