I have a 72 GMC 1/2 ton i got with no engine. It used to be used for drag racing. I bought it because i have a couple 3 SBCs sitting around and wanted something to tow my race bike and for general knocking around. so i built a 350 SBC using flat top pistons, a 327/350 cam and a set of old rebuilt fueli heads i had laying around. i added a set of small tube headers and bolted it to an extra TH350 i had. The truck has a 3.70 rear. To get to my question , it came to me with one of those aluminium and plastic radiators. It dosent really seem sufficent for towing but before i buy a new radiator what would you folks recomend , stock replacment brass and copper. 4 row aliminium, i just need enough not to leave me boiling over going up the hills here in august not wanting to spend money just for the thrill of it.
Thanks
Greg