I have been inactive for long time and getting back to work on my Stovebolt.
I replaced my 216 CID with what I was told is a 235. I am having no luck finding the year on various websites. Hope someone can help.

Engine markings are:

3897004
GM 2

conv1 E2156 0290364T56X

From the 56 in the # I assume it is a 1956 engine. maybe passenger car?

Can someone help?