if taking the paint off the top tank makes yer truck run hot, you have problems - with a rad, the heat transfer happens in the fin area, residence time in the tank is minimal with the water pump sucking it thru, that's why HD rads have more cores rather than bigger tanks,
Woody, yer building a show truck you'll be afraid to even run!! wait'll ya see what happens to that brass after a few hours at 180*
Bilkl
