I have a few original radiators.
wondering if anyone knew of the best way to store them?

I have heard that if left dry, the cores will become brittle and fail.
Thanks Team Camaro!

I hope not.... I've got a dry one in a box laying on it's side on the shelf.... for a long time now!

If you are looking to preserve them, clean them real good from the radiator shop. Then, strap on both sides of the core, a section of Masonite/luan to protect the core.

Take them to a shipping/packing company, and have them Class A pack them individually. This means each one gets wrapped by a barrier bag, then a vacuum sucks out the air, and the package is sealed. Item will last until the seal is broken.