New forged, A+ crankshaft, modified for hot street or competition use. Rod journals are machined to 1.625 for use with Cooper S rods. Standard S rods will have to be side-clearanced.
Main bearing journals are cross drilled for improved oiling. It has been Nitrided for hardness and micro-polished. Checked for straightness, and skim-ground for clearances. Standard size rod and main journals.