340 in stock spool mount location, ECP 26” radiator, and the low profile Hayden high performance clutch fan. You can’t make this car run hot. 3/4” clearance to the fins. Very adequate.
I have a friend on another forum that bought an ECP for his Challenger. Was supposed to be a direct fit, but was anything but. He was not happy with their (non-existent) customer service too. He bought the setup with the dual electric fans.