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. 1x O-ring is included, as well as 5 copper washers and 5 nutcaps.
Use VHM standard insert AE32104-C
- More engine power
- Better heat transference
- More resistance to detonation