Replacing engine without removing the tranny?

You can leave the radiator in just pull the fan, pulley, shroud and place a piece of plywood across the front or the radiator, the lift plate will work fine but a load leveler is the best thing to have, unhook exhaust from the manifolds, pull distributer, unhook hoses/electrical, unbolt the converter from the plate, unbolt the tranny, put a stck of wood or a small floorjack under the tranny, have a friend watch one side while you watch the other and pull the motor. It shouldn't take that long.