I am currently trying to find a radiator for a 1966 Cadillac Deville that has the heater return line. Any ideas?
Have you posted this on Caddy forums? Have you checked in Hemmings Motor News?
I don’t know about caddy forums and have never heard of hemmings motor news. But I will look. Thank you
Hemmings is the ‘go-to’ source for old car parts, that’s where most all parts vendors advertise. And google ‘cadillac forums’, I’m sure you’ll find a few.
Also, rockauto.com has lots of parts for your '66, just not that particular radiator.
Find a radiator that will fit and have a radiator repair shop install the heater fitting wherever it needs to be…
Or, if you still have the old one, that radiator shop could rebuild it.