A904 to 360

learned some thing here my self,, i never knew there was an adapter for the early crank register to newer torque converter button,,,

i have a 1987, 904//999 in my street rod and the motor is a 1954 dodge 241 ci red ram hemi,,and the converter fits the crank,,weird....\\so it is the early 64 crank or the 360 thats different??