Best way is to take the rocker assembly. off the engine, take two head bolts out one near the front and one near the back ,take one to the hardware store and buy two eye bolts the same size and alittle longer screw them in where the head bolts were and out she comes . It's safe and you can keep the eye bolts for the next build.
I got mine from ACE at 8.00 bucks each and they're good for 2000 lbs lifting.Pulled three engines and no problems.
Pete
I've done a few lifts exactly that way with no problems. The only thing I'll add is that I use the next closest cylinder head bolts, not the end ones, as I've heard it's possible to crack the head using the end holes. Might be a wives tale, but I didn't want to take a chance.