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10-17 Yamaha YZ450F YZ 450F 102mm 500cc Big Bore Athena 14 CP Piston Gasket Kit
Athena / CP Carrillo / AZ Quad Parts Conglomerate Kit. 102mm 500cc Big Bore CP Custom Piston & Top End Gasket Kit!
Fits Yamaha YZ450F & YZ450FX Dirt Bike Models. Years 2010 2011 2012 2013 2014 2015 2016 2017. CP Cariilo Piston Kit (Includes, Piston, Pin, Rings & Clips) (AZ Quad Parts). 14:1 Compression Ratio (Race Gas Only).
Works With Up To +2mm Larger Valves! Complete Athena Top End Gasket Set (This Only Works With Athena Cylinders). It will work with your stock head and valves.