Description
Engine refresh cycles are critical moments in your race season—this gasket kit lets you optimize compression and fuel strategy without a complete rebuild. Whether you’re running pump gas at stock compression or stepping up to race fuel with higher boost, the ATHENA top end kit gives you the flexibility to match your setup to track conditions and rulebook requirements. A fresh gasket seal ensures reliable ring sealing and combustion integrity when it matters most.
- Yamaha P400485600092 fitment
- Pro, semi-pro, amateur compatible
- Top end gasket set
- Stock or race compression ready
- Standard or race fuel compatible
- Excludes valve stem seals
- Excludes rubber components
- Excludes fiber gaskets
- Excludes shims
- Bolt-on installation
- Mid-season refresh capable
