anybody know toyota 1UZ engines?

[Uberoo]

I was initially going to put a EJ22 into my 83 Mazda RX7,but after a recent trip to pull and save I found a 90 lexus LS400 with a little bit of front end damage.The wheels in my head started turning and the idea of a 265HP 390 lb v8(40 lbs heavier than the stock 12A) started to sound pretty good.Problem is I don't know anything about those atoyoT engines,so I don't know all of the things I would need to grab from the car.