5.9 Magnum flex plate too small??!?!?!?!?

Smaller-diameter stock converter should work, I bolted up a 5.9 flex plate to my old 904 just with a little ovaling to one hole. Also the Magnum flex plate goes the other direction, the outer ring goes toward the transmission so if the bolt "plates" on the converter don't all fit inside that ring it's not going to work.

The smaller converter was (obviously) higher stall but not by a lot maybe 300-500 RPM. IIRC for the 727 the smaller converter came behind 318s, 340s and (I think) 383/400 4-bbl engines. Most 440s and 383/400 2-bbls got the bigger converter, can't remember which the Hemi got but that's not too relevant lol.