Any way this isn't a crack?

Haven't pulled it yet. That said we drained the old oil didn't notice anything, but the guy we bought it from changed it fairly recently i think. The car did not run when we bought it, but we had it running for a few minutes once we got it home.

Seeing that, and the fact i have a lead on a motor that was pulled a couple of days ago that's supposed to be a runner, we're thinking of going that route.
Yours was also a runner.
Keep that in mind when buying a used engine.