Rodified #4 Cylinder

This is a '68 440 Hp block that has received modification to #4 cylinder by a wayward rod years ago. Approximately 1/2" chunk is bit out. Across the lifter alley #3 has just a small nick. Other than that, nothing else evident w/o throwing bucks at it.

For those in the know, how much is too much on #4 cylinder?

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