400EX 400X 89mm Hi Comp Big Bore Kit Race Gas 12.5:1 Piston +4 Rebuild 440cc Kit

M2033,4667M08900,12100-KCY-670, 4606M08500, C7826, 71016-4, 12191-KCY-673, 30-33750, 13011-KCY-670, 90601-KA5-000, 13103-KCY-670, 13111-KCY-670, 12251-HN1-003, 12209-KL4-005, C7825, 808894, 822278, 4040, 4606M08700, C7826, H0402027S, 4606M08800, 4667M08900, 808829, M2033, 8604DA NEW 89mm big bore cylinder 89mm Wiseco 12.5:1 big bore forged piston Nitrite-coated piston rings Chrome wrist pin Circlips Cometic big bore top-end gasket kit Cometic MLS head gasket Talon TITANIUM cylinder head stud kit - LIFETIME WARRANTY*! NGK spark plug HD cam chain conversion Piston uses pump or race gas Works on all Honda 400EX, 400X, and XR400R models and years 1-year warranty* This is a bolt-on kit that requires no machining of any kind.  Runs on pump or race gas.  Everything is new in the original packaging and the manufacturer's warranties apply***.