Ok not to be a D***, but WOW $550 to get the head done?? I pay about the same for getting a Deck, and mild port&polish on a dual cam 4cyl Honda head. I dont know what He is doing to these heads to justify that kind of cheddar, but more power to Him! Im gonna bring My head to a local machine Guru and see what He says, Im betting He charges less than half. Sorry for the rant.