FITS ALL YAMAHA YFZ450 CARB MODEL YEARS AND MODELS! BIG TIME BOLT ON BIG BORE STROKER POWER! 12.5:1 CP or JE forged piston. Hotrods +3mm stroker crank with rod. Water pump bearing and seal.This is a bolt on kit with no machining required. Cams will work with stock or after market valve springs. Piston uses pump or race gas.
Everything is new in the original packaging. WE ARE HERE TO HELP!!! We ALWAYS STRONGLY recommend that this be installed by a qualified mechanic with experience doing this type of work. Piston comes with specific instructions for setting ring gap. If you do not follow these your motor will fail.
The item "YFZ450 YFZ 450 Big Bore Stroker 500cc Complete Motor Engine Kit Hotcams Guides" is in sale since Wednesday, February 20, 2019. This item is in the category "eBay Motors\Parts & Accessories\ATV, Side-by-Side & UTV Parts & Accessories\Engines & Components". The seller is "bpracingatv" and is located in Upland, California. This item can be shipped worldwide.