My advice would be to stay inside an air conditioned
building when it's 120° outside. But....if you must
venture out......
US Radiator offers several replacement radiators for your
vehicle, ranging from a stock three or four row replacement
to hi-performance. All made right here in the US of A. Take
a look at their site.
http://www.usradiator.com/radiators/chevrolet.html?cat=642As of a few years ago, Desert Cooler was still US Radiator,
that is sold by the original owners daughter. They were just
marketed under the Desert Cooler name. It's been several years
but if I recall correctly from a communication I had with
her, both were the same radiator.
dg