Developed through extensive research and development, ProX has created a complete rebuild kit that includes a crankshaft assembly, main bearings, seals, pistons, components, and a complete engine gasket kit. The crankshafts come fully pre-assembled and are meticulously inspected for proper dimensions and trueness, thus ensuring top quality in their products. ProX Racing Parts has designed this kit with quality and price in mind. Expect nothing less than O.E.M. quality or better at a great price. This kit is perfect for you if you are looking to get your investment back in action with a fresh and healthy rebuilt engine! Complete rotating and reciprocating rebuild kit including crankshaft assembly, main bearings and seals, pistons and components, and a complete engine gasket kit. All components were developed through extensive research and development on ProX's in-house engine dyno.