I have had good luck with the four cores and given a preference I would go with the four core. I have also had good luck with the three cores but I have used them to replace two cores.
The radiator shop where I have gotten work done for the last twenty years tells me that they can get "almost" the same capacity in a three core as a four core because the four core restricts air flow. They have not seen the plugging up as you were told, (unless they meant the air flow side).
If you have a three core in there now and are having problems
then I would definately go with the four core.
Jim
|