Well...like mounting in the boat and stuff.... have no clue
Does the 460 have 4 point mounts? 3 point you are gonna need 4 pt...
460 have logs and snails? (like the 455?)
Drive line splines are the same from Berk to Jacuzzi
Have done 455 to 454 and logs lined up pretty good...460 to 454 lined up good too...
simple plumbing- water and fuel.
swap sending units for water temp. and oil press. from 455.
starter wiring will swap sides 455 drivers', 460 pass. side
Dowel and glass/seal 455 holes in stringers before the 460 transplant
Dan'l