Brand New Complete Top End JE 480cc Big Bore Kit (Pump Gas Kit). This is the most reliable big bore kit on the market! This kit uses only the best components available! Fits Honda TRX450R Years 2004 and 2005.
Cylinder Works 97mm Big Bore Nikasil Cylinder. JE 12:1 Piston Kit (Includes Piston, Rings, Pin, & Clips).
Athena Complete Top End Gasket Kit. It will work with your stock head and valves.