What I don't get is, I want to pay a competent machine shop to do a competent job on the machine work. When they tell you outright that part of that includes a thorough cleaning of the entire block, I do not understand why there is a crapload of crud to the point where the rear drain is totally blocked after they have installed the freeze plugs. I do not want to deal with chemicals. That is why I pay upwards of 2 grand to have someone else deal with it. Took me an hour last time (the 4th total) this happened to rig safety wire to get it unplugged. (you KNOW I didn't get it all) I think it's a mindset on my part.. as a business owner, I give everything plus 100% of everything I advertise. We are dinosaurs, I know, but wasn't that a better time?