Hotrods +4mm stroker crank with rod assembled. MAXLOCK cylinder stud kit with ARP nuts. Complete gasket kit - MLS head base exhaust case and pump covers.Complete crankcase oil seal kit. Water pump mechanical seal and bearing. This is a bolt on kit, ready to drop in with no machining required. Piston uses pump or race gas. 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 Big Bore Stroker Motor Engine Rebuild Kit 719 Hi Comp 12.51 4 mil" is in sale since Thursday, April 20, 2017. 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.