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. 2x O-rings are included.

Use VHM standard insert AE32149-C

• More engine power
• Better heat transference
• More resistance to detonation
• Exchangeable combustion chambers available