Back in the dark ages when dinosaurs roamed the earth, radiator shops actually fixed them, and new cores were available when patching them up became impossible, or at least unprofitable. That's probably not the case these days, as most of those guys are looking at the brown side of the grass. If you can find an old school radiator shop, they might still have a source for new cores- - - -and reuse your original tanks and mounting brackets, etc.
Jerry
