Athena – Cylinder Kit – 47.50 mm – YZ85

Aluminum cylinder is nickel carbide coated designed with larger water jackets | Specially designed, high performance, hard anodized power valves (cannot use OEM) | There is an aluminum cylinder head with a removable bronze dome allowing for a higher compression ratio and anti-detonation features (except where noted) | Kit also includes a Cast-Lite flat top piston kit, and an Athena top-end gasket set that includes required seals and hardware | Bolt on; no matching required except where noted