hi Woogeroo,
did you have any luck with your radiator quest?
i did some google image searching, and this is what i found...
it looks to be some generic GM / chevy radiator, not an OEM for any vehicle in that time frame,
(but i gave up on OEM radiators pretty quick as cross flow seems rare for those years outside of British designs)
there are many options in this style online to choose from between $150-500 range still made new to this day, however they are mostly all aluminum now.
based on the dimensions and make/model you found it in, i would believe it to be an early version of one of either common sizes made today
26 x 19 or 26 x 16
available with
top passenger fill cap
cross flow design
upper left (driver) inlet 1-1/2 inch
lower right (passenger) outlet 1-3/4 inch
it is unfortunate that all will mount slightly differently from each other
i suggest finding a radiator shop and they would perhaps be able to suggest a solution, or go back to an OEM radiator
-s
