I bought a 56 Merc 312 engine at  the Mercuryland auction and after getting it home I found that the block had a hole from rod going thru.  Anyway after tearing the engine down the crank still looks good. I will be selling crank and my question is should I have is reground first,  The crank is now a standand grind and should clean up at -.010.  or do I sell as is.

tom in iowa

54 Merc wagon

54 sunvalley