Well, I have not seen any, so I can;t say for sure, but, I am pretty sure they contract with big reman shops for some of that stuff, and, I have had guys bring me stuff from shops like that, and, lets just say, its not so good. With that said, I would occasionaly buy ready to assemble Canfield heads from them, instead of bare heas, like I would normaly, when I was really busy, etc, but would still check them over. If their block work, is as sloppy and bad as the head machining they do, I would politely pass on a block from them. Thats all i will say