what options do i have in swapping a 460 where a 390 was in a '76 highboy?

 

460 swap
1973-77 f-250 4 wd with 360-390 engine and c-6 transmission
will the 460 bolt up to the c-6 from 360 engine? no, different bolt pattern
will i have to change the exhaust? yes
will i have to get motor mounts for the 460? yes
will i have change the motor mount towers on the frame ? yes towers for the 360 set to high for the 460 block.
will the alternator or power steering brackets from the 360 engine fit the 460? no
ford did not offer the 460 as a option in the f-250 4 wd trucks from 73-79.