Gentlemen, I recently brought a '46 Flathead V8 to a machine shop that was recommended to me after calling around for days to see if anybody would take the boat anchor that's been scamming out of rent in my garage. The shop is 2 hours away unfortunately. The engine has been there (only to be cleaned, magnafluxed, decked, align honed, and bored .060 over) since before Halloween. I don't remember when I brought it exactly, just that it's been a LONG time. I got a call from them finally yesterday and they notified me that there were cracks, one of which might be a career ender. But they also said that EVERYTHING else looks GREAT! Trying to figure out how to attach photos now.... This image of the lifter valley is better looked at with your head tilted to the left. This is the major one in question that they say might be the block killer. Anybody agree or disagree? What would happen if I built it anyway? Are we in danger of blowing up? Catching on fire? This is a 'gouge' in a lifter bore according to the shop. Crack along the oil pan sealing surface. Dent in the deck. And finally another oil pan area crack. My question to you all is this: Would you run it? Or is it not worth it? The shop will find out on Monday if they can repair the lifter valley crack....they didn't seem to think the others were worth worrying about. This isn't going to be a high performance machine by any means. I'm talking daily driver here, but definitely daily. I don't want it to sit. But then again, I also don't want to pay a lot of money to fix a cracked block that will disintegrate either. Any and all opinions are greatly appreciated and respected as you all know way more than I do. Thanks in advance.