SCAT FORD FORGED 4340 SUPERLIGHT CRANKSHAFTS feature Profiled aero-wing counterweights to help increase horsepower by reducing windage, 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 Pendulum cut counterweights to reduce rotating mass.