There are 4 nuts attaching the converter to the flywheel. Look between the oil pan and the flywheel. Rotate engine to gain access to other three nuts. If engine won't turn over, the fun starts. Drain oil out of engine, set engine on floor, with a buddy grab engine roll engine onto the torgue converter, use blocks or what ever, use the hoist to hold the engine vertical. Remove pan and unbolt mains and rods to allow crankshaft to turn.
Good old Bill