The subject has came up before and I do not have a definitive answer. If Marxjunk has a tAg on his it may help. On my restoration thread.....Seeing some progress finally...on page 4,,,I have a close up of my radiator tag that matches yours. Only problem is this was not the original radiator from my car,but was definitely from a 65 GS. I have been told that they were same stick or automatic and simply did not use the cooler. So,you definitely have a 65GS Harrison radiator,but is it 100% same for manual transmission?