I've replaced a number of "cheap" aluminum radiators in big block & small block MOPARs that had overheating "issues" out here in the VEGAS heat with stock OE style brass/copper radiators with positive results.

The recent overload/marketing of cheap aluminum radiators and the perception that they are an improvement over OE style because big money motorsports like NASCAR teams use them is a problem. NASCAR uses aluminum radiators - "it must be the solution to my overheating problems" - did you ever see the size/volume of a NASCAR radiator? I can only imagine the cost. work

Aluminum is CHEAP, off-shore manufacturing is CHEAP, lets market a cost competitive (based on not well understood cooling properties with bigger profit margins than brass/copper) solution to everyone's perceived high cost cooling needs. Yeah, that'$ the ticket!!