Brian Crower Polaris Pro-R Beehive Spring/Steel Retainer/Seat Kit

Brian Crower is well-known for making serious engine components for performance applications. This kit, the BC0900S-2, is built for the Polaris Pro-R and focuses on improving the valve train's ability to handle higher RPMs and more aggressive camshafts. It's a comprehensive package designed to give you everything you need to upgrade your valve springs, retainers, and seats in one go.

Inside this kit, you'll find beehive-style valve springs. These are popular because their unique shape allows for a lighter retainer and a smaller spring diameter, which reduces mass and inertia. Less moving mass means the springs can keep up better at high engine speeds, preventing valve float and ensuring consistent valve control. The kit also includes steel retainers, which are strong and durable for this application, and the necessary seats to properly support the springs. This attention to detail in materials and design is what Brian Crower is known for, aiming to provide reliable performance upgrades.

When you're looking to push your Pro-R's engine harder, especially with upgraded camshafts or forced induction, a robust valve spring setup is crucial. This Brian Crower kit is designed to be a solid foundation for those kinds of builds. It's a complete solution, so you won't have to hunt for individual components. Make sure to consult the manufacturer's installation instructions for proper fitment and assembly procedures.