My radiator guy sends the original bucket, after removing the bad core,
off to a core manufacturer here in the Dallas area and they put a new
core to the old bucket. The reason is, as Bob said, the reproductions don't
even look close to the originals and are getting very difficult to find.
Did this for a friend and the radiator guy charged $514 for removing the
bad core and getting the new core soldered to the old bucket. Added to this will be
the removal and installation of bottom tank as well as the top cover and the side brackets.
This was for an original two row 65 Shelby radiator.