This is a continuation of my thread regarding "White Smoke". Engine is an L98 that I ran hot for a short distance due to being close to home.
Well the heads are off to the shop for a pressure test. Cylinder bores look good with the exception of #5 which has a pit near the top of stroke about 1/8" x 3/8". It can be felt by touch which if memory serves means it's at least .002" deep. This cylinder registered 140 PSI before pulling the heads. #3 read 145 & #7 138. Running a straight edge along the left deck checked pretty good. Couldn't get a .0015" gauge under anywhere however the right bank deck is a different story. Most of the deformation of the right deck in the top front of #2 cylinder. So the question arises: just how flat does the deck need to be? Additionally is one gasket manufacturer better at accommodating out of flatness. In another world I'd be fixing the block but money is really tight and since we're in AZ I want to get back on the road.