Fits Honda Rancher Trx350 TRX 350 Big Bore 355cc Cylinder Head Piston Kit 2000-2006. KIT INCLUDES: 1X CYLINDER HEAD WITH UPGRADED POLISHED INTAKE AND EXHAUST PORTS. ** CYLINDER HEAD INCLUDES - INTAKE & EXHAUST VALVES, VALVE SPRINGS, EXHAUST STUDS ** 1X CYLINDER BLOCK BIG BORE (355cc) 1X PISTON (CERAMIC TOP, TEFLON SIDES) 1X PISTON PIN. 2X CIRCLIPS. 1X COMPLETE SET OF RINGS. 1X HEAD GASKET. 1X BASE GASKET. 1X VALVE COVER GASKET 1X EXHAUST GASKET 1X AIR FILTER. 1X OIL FILTER. 1X FREE NGK SPARK PLUG. Additional Details ------------------------------ Package quantity: 1