SCAT Crank Shafts are offered through Probe Industries  because we realize you have better things to do with your time than call 20 different companies to find parts for your build. SCAT manufactures Five distinct Crank Shaft types for hundreds of applications to fit ever level of performance to include 4340, and Cast Steel in a variety of strokes. SCAT Cranks typically feature: Profiled aero-wing counterweights, Straight shot & chamfered oil holes, Nitride hardened for superior wear reisistance, Lightening holes in all rod throws, Large radius on all journals, CNC machined for absolute tolerances and symmetry for ease of balance and for reduced rotating weight.