We need to hear both sides of the story of course, the engine should have been fine as long as it was kept sealed (no moisture getting in) & the valve weren't adjusted (ruin the valve springs over that amount of time), the out of round bores & the parts failure are a bad sign though... Every shop has some issues from time to time, bad employees bad suppliers, bad parts, bad machine work, etc... It's on the owners to make sure everything with "his name on it" is up to "his standards", if he isn't doing that, it's kind of all his fault letting bad stuff go out the door no matter how often... A bad reputation is much harder to over come, than a short lived reputation for quality product... He has an employee that posts on For A bodies only forum, he claims it was an 11 year old build that is being talked about here & there & For E bodies only... I have some questions, was the engine just now installed? was the engine ever worked on by someone other than them or you? was any alteration done by you before this claim? was the engine tuned properly & all the torque specs checked by you &/or them both? was the engine stored properly? was the valves adjusted from them & left in that position for 11 years? sounds like some more facts need to come out... Problem is "this isn't the only complaint by far, about the quality coming out of that shop" , they did have a very good reputation 10-11 years ago, it's been soiled some of late... Hope it all works out... J-M-H-O