I know the 67 BB radiator is a bit of a unicorn. I believe a C7ZE-Y2 would be the correct one for my December 22 build Dearborn 390 4 speed, no a/c. I also read that some time in December it switched over from C7ZE-D2.
Does anyone know for sure which one it is?
Of course I’d be ecstatic if someone had a lead on a rebuildable core ...