I hate to say this but as usual you get what you pay for ! I continue to not understand why someone would want to put the cheapest radiator they can find to protect the most important and costly part of their classic car. Guy's give it some serious thought as to what you are trying to protect, think about it. Our builds are very expensive and I for one will spend top dollar to protect my top dollar vehicle and drive it with confidence anywhere I want to go.
I have nothing to gain by reccomending a certain shop but my money is on the Mark 7 Radiators.
www.mark7radiators.com out of Bay City, Michigan (989) 922-7335. .080 thick wall aluminum tanks, two 1 1/4 cores which would equal a five core radiator, anodized in any color you want or raw aluminum, custom machined billet tanks as an option, engraved with mutiple logos and or designs, names, Pontiac Arrowheads, "We build excitement" etc...Very nice quality they offer.
Tim john---