Originally Posted by Ramman
Getting ready to purchase a replacement radiator for a 70 E-body 440 with A/C. This combo can test a cooling systems ability to maintain proper cooling. Already have a good fan clutch and fan shroud. 2 decisions to make. Which is better,
2 rows of 1" tubes?
3 rows of 5/8" tubes?
4 rows of 1/2" tubes?
Also what is the best material? Aluminum or Copper/Brass?

Thanks Group!!


2 rows of 1" tubes will keep the engine cool if the rest of the cooling system is correct, the others "can" dissipate more heat but there isn't any heat left for them to dissipate if the rest of the cooling system is right and the only thing they will dissipate is money from your wallet. The others will have more places that are likely to leak also. Now if you don't have good coolant circulation because your water pump is turning too slow or blades worn or not enough of them or the air under the hood is not managed properly by the shroud and things to block the air from circulating AROUND the radiator than the more expensive options may cover up those other issues.

I am not causing global warming, I am just trying to hold off a impending Ice Age!