If you go to collector cars on ebay and look up item #170143316443, it is a 1937 Pontiac with a Chev 235. Look at the view of the left side of the engine. What kind of head is that?? Joe
The seller says that it's a 1961 235. i don't see any casting numbers. It looks like a stock 235 to me. If we've seen one, we've very nearly seen them all.
Look at the bosses right above the manifolds. It almost looks like ports for a smog pump.As far as I know smog pumps did'nt start until 66 in California. I have never seen a 235 or 261 head with these. Joe