Engines and Components› Cylinder Heads and Components
Athena
Athena 20-22 Yamaha YZ 450F 102mm Bore 496cc Big Bore Gasket Kit
SKU: A0EF P400485160092
Beginner — under 30 min
Description
The cylinder is produced using gravity casting and heat treatment for enhanced mechanical characteristics and maximum resistance. It features a nickel and silicon carbide coating for a durable, smooth finish. The included gasket set is Italian-made and features redesigned components to accommodate the new oil passages.
Fitment
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Specifications
| Brand | Athena |
| Part Number | A0EF P400485160092 |
Buy with Confidence
Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
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