Ls swap in 84 c10

[lvnloud28]

ok i  have a 84 c10 and i purchased a ls6.0 out of a 02 denali and its drive by wire got the pedal and all acc. doing the harness myself and going to wire as a stand alone.question i have is i have 3 transmissions ,i have the 700r thats currently in the truck then i have a 4l80  out of a 94 surburban that was behind a 454 and then i have a 4l60 that was in a 95 chevy pickup, was wanting some input as far as which woukld be the better choice and what parts will i need or wiring i would need to change and also would the kick down work? any help would be greatly appreciated thanks

[Captkaos]

With the 60 and 80 you won't need a kick down.  I would go with the 4l60 for ease of install but you need the ouput shaft swapped.