I was having a chat to my boss's yesterday and most importantly about what was talked about in reguards to the AY head and weather or not it would be a worthwhile venture to reproduce it or even tackle the AZ head design. The end result was basically if the interest is there and not just bullsh!t internet jibber and at least 20 units were a definate sale then it would be a viable project. Naturally a heat to copy would be more than difficult to obtain, unless the full origional scale drawings could be obtained.

But it would be best to use something that can be easily modified. Preferably something that runs a belt driven camshaft. So, what head is a suitable canditate?