ok i looked around here and team integra but got no definitive answer except once i read that all 94-01 integras are the same. Looking up the part numbers, they seem to be the same for gsr's through the years and same(diff from gsr) for ls through the years. I also know that there was denso and showa radiators used factory. This doesnt however answer the question of whether i can or cant use a ls in a gsr or vice versa without a hitch. I searched to see if this had been covered more then once and all i found with the 1 exception i mentioned was replacing with aftermarket or oe replacements from auto parts stores. The car is a not a gsr but it has a gsr motor. Logic says the radiator wouldnt change just because the gsr is in there but i need to go and see if i can tell which is in there now. But i saw a few radiators for sale in the marketplace and cant buy til i know if for example a ITR radiator will fit. Thanks for any info directly addressing this problem.

 

I just came back from inspecting and realized i forgot to mention its a jdm front so im not sure if the radiator was any different for them as far as interchangeability. It is a denso radiator however and upon more inspection i have a hot upper hose and cold lower. I remember reading about this several times so i know i can find that info. Now i believe there is something blocking the thermostat or its gone bad because i had the cap off when starting and there was no effect from where i could see which if i recall usually meant the thermo wasnt working. Radiator cap is brand new. Other one went toast.