Description
Whether you’re prepping for race day or executing a midseason engine refresh, the ATHENA Top End Gasket Kit ensures a clean, reliable seal on your engine’s critical surfaces. This kit gives you the flexibility to run either pump gas at stock compression or step up to race fuel with elevated compression ratios—letting you optimize performance based on your fuel choice and track conditions. Built for pro, semi-pro, and amateur riders who demand precision and repeatability, it’s the trusted choice for serious engine work.
- Kawasaki P400 fitment
- OEM part number P400250600958
- Complete top-end gasket set
- Supports stock compression setup
- Supports elevated race compression
- Compatible with standard gasoline
- Compatible with race fuel
- Excludes valve stem seals
- Excludes rubber components
- Excludes shims and fiber gaskets
- Bolt-on installation
- Professional-grade quality






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