Re: Question on 5.7L Chevy V8 compression
A couple of other thoughts:
You might want to inspect the water jackets on the risers (elbows). If they are clogged (and this may kill more engines than we'll ever know) the exhaust will not cool and the engine will overheat - bent rods and all sorts of bad things happen.
It may also be that someone put the wrong oil in her. My GM small block used 30W. Once my partner changed the oil and used 10W-30 instead. Within a mile, it made a couple of terrible clangs and over heated. Needed thicker oil.
Finally the water pump could be going bad.
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