Yes,I have ran into 2 of them with the 1.250 pilot. The first time I had a 1.375 converter setting on the shelf. When we put the converter up to the pilot hole it would not fit,so we measured and it was 1.250. But believe what you want. TCI wouldnt make it unless people ask for it.
Not to pour gasoline on the fire, but what the heck.
1.244 pilot size??????
In the above thread Paul Kane talks about the pilot sizes and says:
"There are three converter pilot diameters for the 385 Series crankshafts that we have seen:
For the most part, the 1.375" and 1.85" pilot diameters are for the 460/C6 engines. However, it seems that some of the very last 1967 Lincoln Continentals that received a 460 instead of the 462 MEL got the 1.25" pilot bored into their crankshaft, because 1.25" is the converter pilot diameter of the 462 MEL trans.
What I don't understand is why a 429 crankshaft would have a 1.25" pilot. I'm pretty sure the earlier Thunderbirds prior to the 429 came with FEs, not MELs. Are you sure it's not a 460 crankshaft? Or, are you measuring too deeply into the flange (is there a step in the bore at the rear of the crankshaft and you are reading the deeper of the two)?
I can neither confirm nor deny this, but knowing how FoMoCo was back then I would not be surprised if some converters were made with a 1.25" pilot.