Whether you're increasing the bore of your engine for more power or if it's just time for a rebuild and upgrade, this Platinum Series Overbore Piston Kit is what you want! These WSM Platinum Series Overbore Piston Kits are high-quality and feature construction that meets or exceeds OEM specifications. Every kit is made of high-grade materials to ensure it can withstand whatever your ride puts you through. Platinum series pistons feature specially formulated non-abrasive skirt coatings and hardened tops for added horsepower and longevity. These kits contain one piston, a ring set, a wrist pin, and improved E-clips. Whether you're looking for a more powerful ride, low-end torque, or even more top-end horsepower, these kits are what you need! This kit is for cylinders that have already been overbored. WILL NOT WORK WITH STOCK BORE CYLINDERS/SLEEVES.