I have a couple of mopar flatty radiators but they came with other parts I bought so I don't know much about them...I believe one of them is from a 40's dodge (I have the 218 on a stand), the other is from a 1957 pickup that had a 230. I never used them so I don't know if they have issues, I think the '57 has a patch on it. Do you have a part number or identifyer from your radiator, I can check mine.