Radiator recommendations for 1990 Burb

[CHANROB]

I am needing to replace my radiator for my 1990 GMC 2500 Suburban 4X4 5.7L. I was wondering if anyone might have any suggestions? I live and drive locally in So. Cali., so the temp is mostly in the 60- 80 degree range. I see there are plastic ones, which dont sound very bomb proof to me, but I have never replaced a radiator before, so I dont really even know where to begin. By the way, my current radiator has a tiny pinhole (stop leak products are not an option), and I was wondering if this might be the cause of my temp gauge to be fluctuating from 210 (mid range) to 260 (red line/overheat)? I have yet to overheat, but I dont like the redlinning! Thanks in advance. Rob, 40, So. Ca.

 

[Bob Purinton]

Radiator recommendations

I'm a big believer in; "You can't have too much radiator."
You could have a good radiator shop custom make one for you or have your old one modified and repaired.
Radiators are, usually, about the same size no matter what they are in so if you want a bigger one take your tape measure and go to the wrecking yard and look at motorhomes and other vehicles a little larger than yours and measure the dimensions of their radiators. you might even find one with traditional copper cores. I don't like the plastic ones either but my suburban has more important issues to deal with at the moment.
Good luck.