Curious on if I can get any money for engine
 

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Update: He said "We took it in the same day it overheated at idle then cooled at speed. We took it to the mechanic and he removed the spark plug finding antifreeze. We then pumped the coolant out and left one sparkplug off for the moisture to evaporate." Do you think this engine is repairable for a decent price or worth any money?

The housings on the side that isn't leaking coolant could still be fine. There's always demand for an engine for parts, post it in the For Sale subforum and see what happens.

few hundred bucks