440 build 500+ hp build

I wouldn’t call that a “crack”.

To me, A crack implies it was once whole, and now the material has been over stressed....... and now there is a crack where the material failed.

I would call that more of a “fold”, where the material ended up with that small void during the forging process.

In any case, I wouldn’t use it.

I’m probably just cynical....... but I’d prefer to buy rods from a source where that was a major portion of their business model....... not just one of thousands of items they sell.
Thats not to say you couldn’t have still found one like that from Eagle, Scat, K1, etc.