Here's my radiator story......
I had a radiator leak so i wanted to get a new one, my old one was a 3 core brass tanks old style. I couldn't find a 4 core to upgrade so i ordered what i thought was a 3 core brass tank like the one i had. When it came in i couldn't believe it...the UPS guy handed me the box and i picked it up with one hand and said this can't be right.....it's waaay to light of a box....so i opened it up and found a double core aluminum rows with plastic tank radiator! I was pissed thinking that it was a mistake, so i called the guy up (i ordered it from rockauto.com) great place by the way! so i told him what i ordered and what i received. He assured me that this was the new style and that they don't make the brass ones anymore. So i told him that i have a 455 and it runs hot and he assured me that this will work better than my old one. What???? a double core plastic tank radiator will be better than a 3 core brass tank one???
Well,,,,,he was right! This radiator as light and small as it is, cools my car better than my old one!!! It dropped my engine temp by 15-20 degrees!!
WOW,,,, i never thought it would,, but they are a lot better than the old heavier brass ones that for sure! and it was cheap too! I think it was $120