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78mm Pro R Stroker Crank – Standard weight design for boosted applications. 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.
| Stroke | 78mm |
| Rod Journal | 45mm |
| Main Journal | 52mm |
| Weight | 34 Lbs |
Be the first to review “BC5917 – Polaris Pro R (22-up) 78mm Stroke Crankshaft”
| Make | Model | Year |
|---|---|---|
| Polaris | Pro R | 2022 |
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