Hugh---Do your best to get the head/block studs out first. This will
give you the advantage of knocking the head sideways, or lifting one
side in trying to break it free.
The wooden handle of a large tool, like a hammer, stuck into an
intake/exhaust port can be a point of leverage.
It's best not to resort to using a chisel here, tempting tho it may be.
Using the rope trick is severe, but can be done without bending parts.
Some have been able to blow the head up a little with (a lot of)
compressed air down a spark plug hole. I've never done this, but it
sounds like this would work in many cases.
Worse case scenario...Take off the pan, drop the crankshaft, pull the
pistons out the bottom, and proceed to whack the head from the bottom
up. Big job, and can mean engine or tranny removal.
Dick T.
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