FITS ALL YAMAHA RAPTOR 660 MODELS AND YEARS. BIG TIME BOLT ON BIG BORE POWER! Wiseco or JE forged piston. Cometic top end gasket kit. Piston uses pump or race gas.
No case or head mods required. Please check your order thoroughly when receiving it. We recommend that this kit be installed by a qualified mechanic with experience working on these types of motors. Piston comes with specific instructions for setting the ring gap. If you do not follow these exactly your motor will fail.
The item "Raptor 660 YFM660 Big Bore Kit 102 mil Top End Piston Hotcams Stage 2 Cam 686cc" is in sale since Friday, December 27, 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.