Don't try to use head bolts with a piece of chain under them- - - -you'll be lifting on just a few threads, and it's possible to rip them out of the block. Remove a head bolt, take it to the hardware store, and buy a couple of 1/2"-13 bolts about an inch longer than the head bolt, and a couple of 1/2" flat washers. Use these bolts and washers to attach a chain to the engine on the line of head bolts between the manifold and the valve cover, using either the first or second hole from each end. Simple, safe, and no damage.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!