Serious 64/65 904 trans question

Hey guys,I,m wondering if anybody knows the spline count on a 1964 904 push button transmission,I,m thinking of putting a stall converter in but don't know if stalls are made for the early a's. if this in in the wrong forum sorry,I didn't see a question forum. thanks guys.
In short,...no, You have to have '68 and up pump,input, and frt. clutch pieces adapted into the early case. Don't remember the early 904 count, but the later non-lockup's
are 27...........'72 and ups have a larger bearing support section up front.