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Re: Broken main cap bolt
I would probably say that the crank is junk because it's almost guaranteed that the bearings have spun, but if it's a small journal steel crank and it hasn't been turned before, it might be savable. Don't get your hopes up.
The machine shop can get the bolt out. The biggest factor is whether the align bore is wasted from the crank being unsupported and moving around.
Being that it's a 327, there's probably a good chance that the block has been rebuilt a few times, and it might be too far worn out to save. .060 is the max on the cylinder over-bore, and I wouldn't mess with it if the align bore is out of whack.
I've pulled apart hundreds of small blocks, but I can't say I've ever seen one with two bolts from different main caps laying in the pan. It sounds like somebody forgot to torque the caps at one time in it's life. Probably didn't have an oil pressure gauge on it either, because that engine would have zero oil pressure.
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