Brian Crower Polaris XP Turbo (16-up) Stroker Crankshaft 72.5mm w/270° Crank Pin
This is NOT product that is onroute to us already, it must be ordered from us, once you order, we will order from supplier that has the stock and the availability as listed on the product description.
This displayed ETA is still an estimation. Our supplier(s) have stock we're giving you the regular and typical ETA from that supplier.
If you're ordering a higher quantity then the quantity shown, please email us at [email protected] with the SKU or direct link and the quantity you're interested and we will confirm lead time.
BC crankshafts 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.
72.5mm XP Turbo (270° pin) Stroker (+4.5mm) CNC machined from 4340 billet round bar. All cranks are stress relieved, shot peened, magna flux inspected and nitrided (multi step heat treatment) for ultimate performance. Fully profiled counterweights, rod and main journals are finish sized to work with blue or green Polaris bearings using aftermarket rods. These cranks must be fully system balanced prior to installation due to 270° offset pins.
Rod Journal 45mm
Main Journal 40.98mm
Weight 19.2 Lbs
No fitments found.