OK. I took some better photos. As shown, pistons 2 and 3 at TDC (notice how #3 has waaaay less carbon deposits on it) You can also And then there's the photo of the tiny crack in the valve bowl on #4, running from the spark plug hole to (possibly?) the exhaust valve, it's hard to tell if it goes all the way without removing the valve. Next is a picture of the #3 cylinder wall which has some scoring marks, including one that I can feel with my finger. There's a pic of the coolant beads on #3 cylinder wall. Not sure if this is only because intake manifold gasket was bad? And then, to improve morale, I pilfered this mitsubishi logo from the auto salvage place where i went to scout replacement cylinder heads in case this thing goes south. Thanks again guys, I couldn't have gotten this far without your input.
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