Is my engine block cracked?

[1998yellowstang]

I recently bought a used motor from a car that was involved in a collision. After further inspection, it appears to have spider web like cracks on the block. Does this mean that the engine block is cracked, or is there another explanation for this?

[WDRacing]

It almost looks like a coating that is cracked. I've never seen a block look like that...almost shattered in appearance.

[djwarner]

Looks like a casting defect when the melt solidified prematurely.

[1998yellowstang]

Looks like a casting defect when the melt solidified prematurely.

If that is the case, then it would just be a visual defect, not mechanical, correct?

[evildky]

Looks normal, aluminum blocks look like this due to the casting process. On high end show cars they sand these casting perfection and stress risers off.

[1998yellowstang]

Looks normal, aluminum blocks look like this due to the casting process. On high end show cars they sand these casting perfection and stress risers off.

Your always a ton of help! Thank you!