ahmincha Posted July 13, 2010 Share Posted July 13, 2010 I'm about to buy a radiator for my 92 4.0 i believe my existing radiator is 2 core. Should i put in a 3 core and if i do is it a direct fit or do i have to modify anything . Truck also has air Thanks in advance Link to comment Share on other sites More sharing options...
CWLONGSHOT Posted July 13, 2010 Share Posted July 13, 2010 Externally there is no difference in the dimensions of either one. many people have a 2 core and never have a problem. Others still have some issues even with the 3 core... IMHO, if you have a stick the 2 is probably fine. If you have a auto go for the 3 core. CW Link to comment Share on other sites More sharing options...
ahmincha Posted July 13, 2010 Author Share Posted July 13, 2010 Thanks for the reply it is a stick. My parts guy said they were the same price so i figured the 3 would be better thanks for the advise Link to comment Share on other sites More sharing options...
CWLONGSHOT Posted July 13, 2010 Share Posted July 13, 2010 I haven't seen one overcooled. So I would tend to agree... CW Link to comment Share on other sites More sharing options...
Comanche County Posted July 13, 2010 Share Posted July 13, 2010 I think there's been a shift toward aluminum radiators vs copper. I recently returned a 1 row aluminum radiator to the parts store because I thought it was too thin. Then, when I was later at the radiator shop, the guy told me several manufacturers are also using aluminum now and that a 1 row aluminum can dissipate/radiate heat as well as a 2 or 3 row copper radiator. Link to comment Share on other sites More sharing options...
ahmincha Posted July 14, 2010 Author Share Posted July 14, 2010 Thanks I'll keep that in mind Link to comment Share on other sites More sharing options...
LEAD_NOT_FOLLOW Posted July 14, 2010 Share Posted July 14, 2010 I run CSF 3-Core (all metal) in all our XJ's and MJ's. They are a great upgrade! Link to comment Share on other sites More sharing options...
kastein Posted July 14, 2010 Share Posted July 14, 2010 I think there's been a shift toward aluminum radiators vs copper. I recently returned a 1 row aluminum radiator to the parts store because I thought it was too thin. Then, when I was later at the radiator shop, the guy told me several manufacturers are also using aluminum now and that a 1 row aluminum can dissipate/radiate heat as well as a 2 or 3 row copper radiator. far as I know that's crap, aluminum has a thermal conductivity of 250 watts per meter-kelvin (wonky unit, more is better in this case) while copper has a thermal conductivity of 401 on the same scale. So for a given piece of metal copper will transfer the heat nearly twice as well. Radiating/dissipating, just make sure the radiator is painted black on the outside and it'll radiate quite nicely. Honestly I'd put aluminum in a DD any day of the week, but an offroad rig that might get radiator damage, copper or brass only, because you can solder them back together and drive it home. My '96 has an aluminum rad because it was a DD when I replaced it, my '98 has one because I just had to get it running and it's stock right now, the MJ is getting a copper radiator and when I get the 96 back into driveable/wheelable shape I'm probably going to swap its radiator with the one in the MJ. Link to comment Share on other sites More sharing options...
terrawombat Posted July 14, 2010 Share Posted July 14, 2010 They don't use aluminum because it's better at dissipating heat, they use it because it's cheaper. And in the racing world, it's lighter and lighter=better. Link to comment Share on other sites More sharing options...
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