FROZEN/STUCK low miles motor, HELP!

Carefull using the big block balancer bolt. They're shorter than a genuine slant 6 bolt and therefore doesn't go very deep into the crank hole. I've seen them strip out when torqued to factory specs. It would be better to use a small block one and add some washers to keep it from bottoming out but still keeping the threaded area deep into the crank.
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Oh, here's a link to some stuff that's supposed to work good.

Seized engine problem? Engine Release works, or your money back!