Brian Crower 2021+ Polaris Pro R Stroker Kit 78mm w/ BC ProH2K Rods

Starting with a 78mm stroke crankshaft, this stroker kit from Brian Crower is built to increase the displacement of your 2021 and newer Polaris Pro R engine. The increased stroke is a fundamental way to make more power, and Brian Crower has engineered this kit with robust components to handle the added stress. This kit includes their BC ProH2K connecting rods, which are known for their strength and reliability in high-performance applications.

The crankshaft in this kit is forged from high-strength steel, a critical choice for handling the increased forces generated by a longer stroke. This forged construction offers a solid foundation for your engine build, ensuring durability under demanding conditions. The BC ProH2K rods are also forged, featuring a robust I-beam design that provides excellent strength-to-weight ratio. These rods are designed to be a direct replacement for the stock connecting rods, simplifying installation for those rebuilding or upgrading their engine.

When undertaking an engine build of this magnitude, it's important to consider all the supporting modifications needed to take full advantage of the increased displacement and power. This kit is intended for serious engine builders looking to extract maximum performance from their Polaris Pro R. Please note that this kit is not CARB approved and cannot be shipped to California.