building a pushbutton super build

[neal zimmerman <neal.zimmerman@xxxxxxxxx>]

OK, this is a new thread kind of.
  We just discussed that swapping in a newer input shaft opens up many
more convertor choices.
   And I know that the ball and trunnion rear can be done away with by
using a 72 -up rear section.
    What about the guts.  I have two small block 727s, one from a van
and one from a 4x4.  I hear tell that the van and 4x4 trannies used
beefier pieces and a 4 gear planetary as opposed to  a three gear.
Thats why I have been keeping these things around, for a possible
super-build down the road.
    are the internals interchangeable betwwen small block 727s  and
big block 727s.?
    neal zimmerman, eugene oregon