Technical eBay aluminum radiator?

Why use an aluminum radiator when a copper/br*** radiator has a better cooling coefficient?

 

Bought one from eBay and the mounts were welded on in the reverse position.

Contacted the seller and he did make it right, but still ?????

Anything on eBay is a roll of the dice !

Oldmics

 

Champion in my truck. 347 stroker with an electric fan and zero shroud. bumper to bumper cruise nights in 80s and better it stays cool. The welds arent all perfect and pretty. But it looks good enough, and functions great.