04 05 TRX450R TRX 450R Rebuilt Big Bore Stroker Motor Assembled Engine 500cc Kit LT50 Works on all Raptor 700

Works on all Raptor 700 models and years using a Hotrods 4178 stroker crank

Do I need to modify the cases or head

Forged hi comp pump gas piston (Wiseco

Main bearings - one comes on crank

Complete top and bottom-end gasket kit

04 05 TRX450R TRX 450R Rebuilt Big Bore Stroker Motor Assembled Engine 500cc Kit LT50 Works on all Raptor 700COMPLETE ASSEMBLED 500cc BIG BORE STROKER! Used core bottom end including cases, transmission, shift forks counter balancer Core bottom end was torn down, inspected, all parts cleaned, and sand blasted All work done by our in house mechanics, who have over 50 years combined experience All other parts are new, listed here: 97mm heavy duty big bore cylinder 97mm Wiseco 11. 5: 1 forged piston Nitrite coated piston rings Chrome wristpin Circlips Hotrods