(Stainless Steel / 40mm +2mm)
These are the same 40mm exhaust valves we use in our stage 5 cylinder heads. 40mm exhaust valves are designed for use in heavily ported high-performance applications only. They must be used with matching seats.
- Larger for more airflow
- Swirl-polished for max airflow
- Lighter than factory steel valves
- Hardened tips for longer valve life
- Made from temperature resistant stainless steel
- May be used with factory valve guides and seals
NOTE: Sold individually. Recommended Parts:
- Intake Valve, see Part #: 1023045
- 40mm Valve Seat, see Part #: 1023111
- Stage 5 Valve Kit - 20R, see Part #: 1021559
This product should not be used in a manner that violates Federal EPA Laws.
Contact our Tech Support Line for further information at 928-855-6341.
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Note: Images are for illustration purposes only. Images may not represent the product listed. Please contact customer service with any questions or concerns: 1-928-505-2501.