Is this 440 block worth going any further with?

Back in business, I think. I spent part of the weekend rolling around in the dirt at the local wrecking yard pulling a virgin 72' 400/HP short block out of a bright pink Sports Fury. Hopefully I have better luck at the machine shop than the last time. I think I am still going to do a 512 only this time base it off of the 400 block.

Thanks,
Brandon