I swapped my 3.0L V6 for a 3rd gen 3.4L V6 last year. Total cost was about $4500....motor cost alone was $2,800. I also did some stuff to the motor...W/P, Alternator, tune-up, T-Belt, Clutch. Probably over $1,000 in parts alone. Most of which didn't to be done, I just did it while it was still easy to do.....motor on a stand and all.

'93 4Runner - 3.4L 5VZ-FE, 2" body lift, on-board-air system, custom gauge cluster, rear e-locker, electric fan, custom built front and rear bumpers, sliders, 4,88 gears...all on 33x12.5's.