The world famous golden VHM head with exchangeable combustion chamber is specially developed for optimum power output during the whole race and has an improved water duct. It is manufactured from high quality alloy and O-rings are used for sealing. Vent screw (M6x8) and small copper washer (BD36006) are included and mounted on the head.
- More engine power
- Better heat transference
- More resistance to detonation
- Exchangeable combustion chambers available