The big Y blocks have their own bell pattern and most were made for trucks or the earlier Lincolns that still had the Lincoln Y-block. Once that MEL was out then there was a cross over with the FE so that they could use the same or similar transmissions till early 61. I don't think that parts book is correct putting a large Y with an MEL block. I'd guess it's a miss print. The Cragar or Stroppe bell housings were the only ones made for these big engines in cars.
There are several offerings for automatic transmissions to be adapted but no one is offering standard trans types. The truck engines were for F700 and F800 applications so no light duty bells were made for trucks and the big Y. An FE scattershield could likely be modified by welding and/or redrilling of certain holes. This would affect at least one of the alignment dowels and as many as six of the bolt holes. An adapter could be fabricated to fit the big Y with an FE block type bellhousing but it would likely require a crank spacer the same thickness to get the dimensions back. This won't be an easy adaptation but it can be done if a person wants to go there.
This link has a photo of the Cragar piece. They show up now and then.
http://forums.y-blocksforever.com/Topic84831.aspx
You might check with this guy but no guarantees since I don't know who he is.
https://www.fordbarn.com/forum/showthread.php?t=273611