So you're saying now that you have a 1960 235?
Based on your description, you have a 50-52 head, and no, it won't work on a later 235. What you should be looking for is a head with casting 3836848.
As for general interchange:
37-53 216 and 41-49 235 are the same
50-52 235 only
53-62 235/261 all
