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:
AE32335-C (for OEM piston)
AE32335-032 (for 12° VHM piston APKT12511725A)

• More engine power
• Better heat transference
• Exchangeable combustion chambers available

*Note if you have a 12° piston you need to order the kit with a 12° insert