Looks like it was believed to be new, but from a Chrysler (https://www.stovebolt.com/ubbthread...blowing-coolant-at-180f.html#Post1528410) but was actually repaired and plugged (https://www.stovebolt.com/ubbthread...blowing-coolant-at-180f.html#Post1530043).

If it were me, I would put an original style aluminum radiator in and just roll with it.

From the Rocky Mountains?
Check in with the RM Bolters!
HiPo Forum Moderator

1958 Task Force Truck
"Frank" gets a new lease on life
Follow in the DITY Gallery
1959 3200 Task Force
The Ballad of Enkidu
The Saga in the DITY Gallery ~ and the story continues