Why not use two "EYE" bolts into the spark plug holes with a short chain from one to the other and than attached to the lift? I did remove and installed mine in this way WITH transmission attached.
What is a frame spreader? Picture please.
Thanks
Dick
I have tried several times to use a load leveler and it has always been more trouble than it was worth on Model A and Flathead motors.
I usually remove the engine and trans together, but I have FAM mounts which makes it easier.
John