17 18 19 CRF450R CRF 450R 1351 Piston Stock Bore ATHENA Cylinder Top End Kit

Athena Stock Bore Cylinder Top End Kit With 13.5:1 Skirt Coated Piston Kit! This is the best and most reliable rebuild kit on the market! Fits Honda CRF450R Years 2017 2018 2019. Athena Nikasil Stock Bore Cylinder. Larger Water Jackets For Better Cooling!

Athena Forged & Coated 13.5:1 Piston Kit (Includes, Piston, Pin, Rings & Clips). Athena Complete Top End Gasket Set With MLS Head Gasket. Hi Temp Viton Valve Stem Seals. This is a bolt on kit with no machining required. It will work with your stock head and valves.

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