The world famous golden VHM head with exchangeable combustion chamber is specially developed for optimal power output during the whole race and has an improved water duct. It's manufactured from a high quality alloy and O-rings are used for the sealing.
Use VHM standard insert:
AE32286-E (for OEM piston)
AE32286-029 (for 12° VHM piston APYZ08521757)
Use the insert chart as a general guideline to select the insert depending on the fuel, track and elevation.
- More engine power
- Better heat transference
- More resistance to detonation
- Exchangeable combustion chambers available
