VHM Cylinder head inserts

VHM make interchangeable combustion chambers so you can choose different volumes to suit the tracks you are going to, most buyers allow us to make the insert choice based on the information given so you can call us to discuss or choose from the list, VHM will make within reason what you want if you have your own idea or if your engine runs with a non standard format of piston height or crown design´┐Ż