This complete 4-Stroke Top and Bottom End Kit has everything you need, all the quality parts, including a Vertex 4-Stroke Piston, to rebuild your motor. The kit includes: Hot Rods Crank, Vertex 4-Stroke Piston, Hot Rods Bearings and Seals, and a Complete Athena Gasket Kit. Hot Rods Crankshaft: Building on the success of high-quality, O.E.M. replacement rods, Hot Rods introduced the perfect place to showcase them in a complete heavy duty Hot Rods O.E.M. replacement crankshaft. Since that time, Hot Rods heavy duty crankshafts have been regarded as the premier alternative, Hot Rods heavy duty crankshafts also bring a level of uncompromising quality, design and innovation not seen in its competitors. All crankshafts are sold complete and ready for installation with the original proven Hot Rods connecting rods, and crankshaft webs.