[frnkeore]

These are my aluminum, 21 stud heads.

One is like deuce lover's heads. It is not marked, at all. I would like to either sell mine or buy another like it.

One is marked 40- and I have another that I bought to match it, it was said to be a '33 head but, is unmarked (not pictured).

The cast iron one is marked 68- and is off my truck. It's for domed pistons. That block is late '36 or '37 block. It was rebuilt at one time, after '46, as that is the casting date on those heads.

When looking for a matching heads, I never saw a aluminum head, for domed pistons but, if there is a aluminum head, marked 68- it should have the domed chamber, I think.