| You can't run it like that (with respect to the piston damage). You'll be pre-igniting like crazy as each of those pitted bits will be a hotspot in the cylinder. The plug won't even be required to ignite the mixture after a short period of operation because those hot spots will do it for you. ;-) It doesn't take long to pre-ignite an engine to death... At which point you'll pound the shit out of the rod bearings (first) and then the main bearings. Depending on how long you used the vehicle in this condition, you will already have started to pound the rod bearing. Years ago, I had a similar problem and in very very short order, the rod bearing was starting to be pounded. The mains and other rod bearings didn't seem to have too much wear at all, but I replaced ALL the bearings simply because I was there. I'd do the same in this case, especially if you see signs of wear when you pull the rod journal off. I've had little pits in piston crowns before, and as long as you smooth them out enough, you can get away with operation of the motor. So it just depends on severity. You just can't have any thin areas of extension that would be prone to getting very hot and staying very hot. You've got enough damage on the edges of the piston that I'd just replace it. Especially considering the performance level you will be expecting from your engine. If it were just a grocery getter, you can get away with that kind of crap being smoothed out. But I imagine you're demanding and want the boost cranked up. HP = heat. I think you know what you're going to have to do. The plan of attack seems reasonable.
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