Brian Crower 2016+ Yamaha YXZ/Sidewinder Stroker Kit - 71mm Stroke Billet Crank w/ BC PRO625 Rods

If you're looking to significantly increase the displacement and power output of your 2016+ Yamaha YXZ or Sidewinder engine, a stroker kit is the way to go. This kit from Brian Crower is built around a 71mm stroke billet crankshaft and paired with their BC PRO625 connecting rods, designed to handle the increased demands of a larger displacement engine. By increasing the stroke length, the piston travels further down the cylinder with each rotation, effectively increasing the engine's cubic inches and allowing it to ingest more air and fuel. This translates directly into more torque and horsepower across the entire RPM range, giving your Yamaha a serious performance boost.

The heart of this kit is the 71mm stroke billet crankshaft. Billet construction means it's machined from a solid block of high-strength steel, making it incredibly strong and durable, capable of withstanding the higher cylinder pressures and stresses that come with increased displacement. This robust crank is designed to be a direct replacement for your stock unit, but with the added benefit of increased stroke. Complementing the crankshaft are the BC PRO625 connecting rods. These rods are forged from high-strength steel and feature a robust design, including ARP fasteners, to ensure they can reliably transmit the power generated by the larger displacement engine. The combination of a billet crank and strong connecting rods is essential for building a high-performance engine that can last.

This Brian Crower stroker kit is a significant upgrade for enthusiasts looking to extract maximum performance from their Yamaha YXZ or Sidewinder. It's important to note that this kit is not CARB approved and cannot be shipped to California. Building an engine with increased displacement often requires other supporting modifications, such as upgraded fuel systems, engine management tuning, and potentially cylinder head work, to take full advantage of the added cubic inches. Consult with your engine builder to ensure all necessary components are addressed for your specific build.