18 19 Yamaha YZ450F YZ 450F 102mm 102 500cc Big Bore Athena CP Piston Gasket Kit

  
Athena / CP Carrillo / AZ Quad Parts Conglomerate Kit. 102mm 500cc Big Bore CP Custom Piston & Top End Gasket Kit! Perfect For The Biggest Big Bore Kit Or Snow Bike Conversion. Fits Yamaha YZ450F & YZ450FX Dirt Bike Models. Years 2018 & 2019 ONLY. CP Cariilo Piston Kit (Includes, Piston, Pin, Rings & Clips) (AZ Quad Parts). 13.5:1 Compression Ratio. Works With Up To +2mm Larger Valves!

Complete Athena Top End Gasket Set (This Only Works With Athena Cylinders). This is a bolt on kit with no machining required.

It will work with your stock head and valves.