radiator choice

[Speedbumpauto]

A possibly bigger consideration for aluminum radiators is the size of the tubes in the core and not the number of cores since long thin tube ability is the only advantage aluminum has over copper. Most 3 core aluminum rads use 3/4 in. tubes. IMO, for cooling efficiency, you are better served with 2 rows of one in. tubes, but those radiators usually cost more. There are companies out there that make two rows of 1 1/4 tubes in their HD radiators. Only two cores but very long thin tubes for lots of surface area.