Should I Be Concerned?

Finally got the little guy torn apart to resleeve/bore the cylinder and upon further inspection I found discoloration on the crank. Coming from a European race background, I would sh*t bunnies and do cheetah flips if I saw this on one of my cars. That being said, is there anything to worry about here or do I need to just go ahead and pick up a new crank while I’m in there?

Gotcha. Makes sense. Thank you! I’ve got her all back together, but I appreciate the input. Puts my mind at ease at least. Now I’m dealing with transmission issues. Looking to see if I can find any posts on the subject.