FITS ALL YAMAHA YFZ450 CARB MODELS AND YEARS! CP or Wiseco forged hi comp pump gas piston.Hotrods +3mm crank with rod. MAXLOCK HD head stud kit.
Complete top and bottom end gasket kit. Complete crankcase oil seal kit.
No mods of any kind are required to use this kit and piston runs on pump or race gas. We 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. Failure to follow these exactly will result in motor failure.
The item "YFZ450 YFZ 450 Cases NEW Crankcases 500 Big Bore Stroker Kit Complete Rebuild" is in sale since Sunday, March 10, 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.