Here are some photos of the block I took right after I removed the head. To my untrained eye, all the cylinders look about the same. I also didn't notice any "clean" combustion chambers on the block (sorry no picture). The shop said they found some gunk in the head that looked like StopLeak stuff. I'm not sure how that would have gotten in there. When I had the engine rebuilt about four years ago, the block and head were cleaned in a chemical vat. At that time I took the radiator to a radiator shop to have it cleaned and checked for leaks. Recently when it started overheating, I took the radiator back to the same shop to have it checked again.
Someone had asked earlier if I had water coming out of the tailpipe. I did not see any.
https://www.dropbox.com/s/s0gpdfw03wvalo7/IMG_0262.jpghttps://www.dropbox.com/s/7vh1x5tg2wj8psy/IMG_0263.jpghttps://www.dropbox.com/s/cmxo76prpwj20s9/IMG_0264.jpghttps://www.dropbox.com/s/evib62h11hn4apq/IMG_0265.jpg
