Donor 440 Engine Block Concern

Good Afternoon FABO,

Just got ahold of a donor 440 out of an old RV and stripped it down to the block. After doing some inspection, I noticed there seemed to be some breakage in the block near the lifter cylinders (sorry if thats not proper terminology, still learning). I was curious if anyone has any experience with this, and whether that is something to be concerned about. Pictures attached, thanks in advance for any advice.

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