This is the link I have:
http://www.autopart.com/radiatorinfo/heatercoretech.htm
I found this site in a pretty old thread and was wondering if anyone had a working alternative to it? I have the list of heatercore sizes (
http://www3.telus.net/MadHacker/HeaterCores.htm) and I'd like to get the GDI part numbers from the Fedco ones.