Send us your worn or broken Polaris Ranger 500 Engine for a complete professional rebuild. The base price is $750 for labor plus parts and machining. This includes Tear down inspection with failure analysis and measuring of all critical components and assembly. Boring the cylinder to the next size up, performing a 3 angle valve job on the cylinder head and any additional machining services necessary will add to the base price. This price does not include parts. Generally parts will be around $250.00 for the average job but may go higher if more parts are out of factory specifications.