There are really two different markets for the aluminum head. One for a hot rodder and one for an all out racer and based on the limited market, my guess is it will lean more to stock than an all out head. The number of Duggan or Sissel aluminum heads is a large part of my "logic". This head cannot require the hours of machining, either by the manufacturer or end user that these earlier heads did. It would make sense that it will be a direct bolt on replacement for stock heads. Yes, it could have lumps, at least 1.94 (maybe 2.02)and 1.60 inch valves, screw in rocker studs and openings for manifold heat. I would expect to see the use of off the shelf valves, manifolds, rockers, push rods and maybe even valve covers.
In order to to manufacture the aluminum head there needs to be enough sales and profit to justify it and still be inexpensive enough that the average inliner would be willing to spend the money.
