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. Two O-rings Ø110.74x1.78 are included.
Use insert AE32274-
- More engine power
- Better heat transference
- More resistance to detonation
- Exchangeable combustion chambers available