Looking for a 351 Windsor Head

[almcbri]

Well a little bit about my new project. My brother and I bought a 1983 Ski Nautique that we are restoring. I broke down the engine last week and after getting the block and heads checked out 1 head came back cracked.
I was wondering if anyone had a 351W head lying around they want to part with. I was told the heads from any 351W marine are the same as 351W auto motor. I know the marine blocks are thicker.

Any help would be appreciated. Thanks, Andrew