[mepstein]

Yes, all those places. If you start to read up and watch videos on how to rebuild an engine, it will help you learn how to do your own ppi or at least what to look for. Buying a core engine that needs a full rebuild is more about knowing what to pay for it than knowing what’s wrong with it. Other than buying an engine that’s blown up inside, you are pretty much counting on refinishing, repairing or replacing everything that normally gets done in a rebuild.
If you are thinking that overhauling an engine and buying a roller will save you money over a good running car, you might be surprised.