I'm not saying this is the correct method but not having anything else to hand I used 3 strong ratchet straps.
one at each end, all the way round, under and back up, both attached at the top to the crane arm
and one around the block horizontally just under the head nice and tight just to make sure the others didn't move
it worked fine but I was careful and slow checking it all the way for any signs of movement
if it was a bigger engine I probably would have been more wary
since then we bought anchors that bolt to the head as per imack post, that'll be for when we put it back in, I have to be honest though I did wonder at the time whether it made sense to put strain on those head studs? but if thats the usual method I'm sure it's fine
Edited by stuart bowes, 02 May 2023 - 12:43 PM.