Well I'm going to take a wild stab here but most the time I think van motors come out the door? like taking the driver's seat out and the driver's door off and or maybe even the passenger to not have the steering wheel in the way..??..
I pulled a LA 360 out through the passenger door. However, that was in a '89 and the motor sat back a little more. On the magnum vans, I think the motor is more forward and not sure if the door exit works or not!