Looks like a late model (1976) industrial 413. I wouldn't mess with it even if it was free but that doesn't mean you couldn't make a good engine out of it. You would probably end up throwing everything but the block into the recycle box. Maybe keep some of the sheet metal and maybe keep the crank. So if you are going to buy it you shouldn't pay more than $150 or $200 since all you are buying is a used 413 block. A 440 block for $500 is a much better deal than a 413 block for $150 plus the whole day it will take you to tear that apart and haul the pieces to the recycle yard.
