Try posting at the Hokey Ass Message Board (HAMB) on the Jalopy Journal site (
www.jalopyjournal.com).
Make sure you do an intro first after you register. Then, ask away. There's more vintage engine knowledge and connections on that board than anywhere else I've seen.
PS- Did you know there were aftermarket aluminum heads made for the V-12 Lincoln way back in the day? It's true...I recently saw a pair at the Carlisle Swaps. Wild stuff...
~SP~