Coal Rolling = Posing
Join Date: Nov 2007
Location: Cumberland Furnace, TN
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My OBS 7.3 has 310k, I've got injectors, HPOP, fuel system, etc...
The block and rods aren't any weaker than they were new, and depending on how big you go, there's no reason you can't replace the headbolts with studs, one at a time.
The question is, what's compression like?
My OBS still has excellent compression, so I'm not concerned.
Low compression could be an indicator of a worn out engine that isn't worth modding.