Prayoonto 4340 Billet Crankshaft
mCrankshafts are made from the finest, aerospace grade 4340 steel billet material. CNC machined on state of the art, 5 axis
Mazak Integrex 300-IV CNC machines to exacting tolerances (.0001"). Every crankshaft features large radius journals
that add rigidity for high horsepower, high boost, high rpm applications. Gun drilled, CNC ground oil holes feature a smooth
surface for extra oiling, tear dropped for added oil scoop, cross drilled for priority main feeding to the rods and micro
polished to a mirror finish for optimum bearing lubricity. All cranks are stress relieved, shot peened, magna flux inspected
and nitrided (multi step heat treatment) for ultimate performance. Fully profiled counterweights are designed for reduced
windage through the crankcase creating less oil resistance for better RPM potential
Mazak Integrex 300-IV CNC machines to exacting tolerances (.0001"). Every crankshaft features large radius journals
that add rigidity for high horsepower, high boost, high rpm applications. Gun drilled, CNC ground oil holes feature a smooth
surface for extra oiling, tear dropped for added oil scoop, cross drilled for priority main feeding to the rods and micro
polished to a mirror finish for optimum bearing lubricity. All cranks are stress relieved, shot peened, magna flux inspected
and nitrided (multi step heat treatment) for ultimate performance. Fully profiled counterweights are designed for reduced
windage through the crankcase creating less oil resistance for better RPM potential
