High-performance gaskets for hardcore racing junkies. Great for your dirtbike, snowmobile, ATV, PWC, or small engine. Will help extend the life of your prized possession. Innovative design, rugged dependability, and superior function. Made from top-notch materilas to go the distance. Designed specifically for high-performance applications. Proven to deliver exceptional realiability on any track or trail. Made by industry leaders in premier gasket manufacturing. Top End Engine Gasket Kit by Vertex®. Top end gasket kit includes the head, base and upper end gaskets. These sets are designed for piston replacement. Vertex top end gasket Sets are designed for a piston replacement, delivering best-in-class value by offering the right balance of price and performance. Constructed from quality materials that meet or exceed Orig. Equipment specifications.