[BRENT in 10-uh-C]

Well, being brutally honest with you, -some may already be scrap. To the unknowing, you may get $100 for a complete core however it has been my experience that most engines as you describe are completely worn, and often the internal parts are not worth salvaging.

For example, if the block has any type of crack, the costs associated with repair exceed the value of the core. Yes, the crack can likely be repaired however the costs to do so are expensive, and most people who are wanting to purchase a core are not interested in buying one that has been cracked.

The next valuable piece is the crankshaft. Many have been improperly ground, -or the journal sizes have been reduced where they are 0.020" or greater undersized. At that point, the crankshaft will cost more to restore than the value if the crank making it a scrap item. So what you possibly have left is a camshaft core and/or connecting rod cores.