Theres normally a hose on the back where the thermostat housing is that protrudes more than the others that will (on an allspeed frame) make it a bugger to get a hose on once the engine is dropped into position, not sure how much clearance as you might have more depending on your frame but just keep any eye on this one marked top hose
If it looks like its gonna be tight against the frame/bulkhead once dropped in then feed part of the hose on beforehand