I thread the strap thru the flywheels, so they can't turn, around the head, and around the crank hubs. Keeps it from flipping over - these critters are top heavy.
Some attach a lift plate to the exposed head studs, and lift from that, but I don't know if I trust the studs or the threads in the block. I guess they hold the head ok when the cylinder fires, but seems odd to me. If I had real steel studs, and knew the casting threads were OK, I'd give it a go.