V8Druid
do it as well as you can,but learn to do it better
did consider that too ... should've told him the measure their depth in the holes .. I'd change anything that wasn't at least a mil below surface and also check every other core plug visible ... must've been pretty cold to pop them out ... usually the biggest go first (sides of block usually)Also wouldn’t hurt to change the rest while you are at it. All of them will have been under pressure from the ice potentially disturbing their seal