W2 Race vs Econo Heads, What's the difference?

There were many versions of W2s over the years. Econo vs race... open chamber vs closed chamber ... cast iron vs aluminum (Batten) .... long valve vs short valve ...
48 degree vs 59 Degree.... oval port vs square port .... various CC chambers .

I would like to see a complete list with variables and part #s
The list is long and would require someone having a lot of old books to search the numbers. Just to add to the mix, you could get the head loaded as well. All the ports are the same within the casting number series. IE; All first run heads are the same. Then the second run of updated ports are the same, and so on.

This is just a FYI for the general public that may not know....

MoPar never offered/cast a aluminum W2 head. There were two older places/companies that made there own aluminum W2. Batten and Diamond.
Currently, only Indy Cylinder Head has (there) aluminum versions in oval and square ports.