400EX 400X 87mm Big Bore Kit +2 Cylinder Piston 416cc Top End Rebuild Parts Kit

Works on all Honda 400EX, 400X, and XR400R models and years 87mm heavy-duty big bore cylinder 87mm big bore Wiseco or Wossner forged piston Nitrite-coated piston rings Chrome wrist pin Circlips Cometic big bore top-end gasket kit MLS big bore head gasket Talon TITANIUM cylinder head stud kit - LIFETIME WARRANTY* NGK spark plug No case or head mods required Runs on pump or race gas 1-year warranty on the complete kit, used and new parts*