Those head where correct for that car but not matching ,Thats a very nice car and nice resto you have done on that CJ. They are quite rare. The heads on that should be DOOE-R. Hopefully there are no casting mistakes on those heads.
I'm gonna hold on to those heads, I think there something unique.Im not certain but I guess when they set up the casting they are able to interchange numbers according to the casting and I suppose a worker may simply forget one or put in an incorrect one sometimes. I will take a look at the link.