OK, I need to do more research on radiators. On page two of this thread I noted that the 62 and 63 radiators are different. This may not be the case… I now know that there are three different codes for the Jetfire radiator for both years. I don’t think this is a year difference but an option difference. I am likely picking up a 63 Jetfire 4 speed car soon so I will see if that 63 has the same radiator as my 62 4 speed. Both cars have the same options that determine the radiator usage. If they are the same it will confirm that it is an option difference over a year change.