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Message: <blockquote data-quote="NXcoupe" data-source="post: 623710" data-attributes="member: 11751">haha, NO! But I am doing this for others, and not just trying to get ring seal in something. You also have to look at taper in the cylinder, even a slight amount can cause the rings to move in and out of the piston ringland. This movement in and out causes additional wear to the rings, causing premature failure. So no, I don't do that kind of stuff. It is a short term cure and will rob the engine of power. What people do in their garages is up to them. I only look at optimal performance. As I said in my previous post, take the info or leave the info, I was just throwing out some tech knowledge for the board to use. other than that, I keep most of my build techiniques to myself. One more thing that is general knowledge, if you take a used bore that 'looks' good, it in fact is tapered and not circular anymore, the rings will only seal in the places that they touch on start up, then as they wear, or 'break in' they will seall around the circumference of the cylinder bore, cool right? wrong, as the rings wear and seal, they are no longer round, so when they wear abnormally to seal to a no longer perfectly round cylinder wall, the ring stops moving in the piston and the ring will stay in one spot. This will also cause the rings to wear. MOst people don't realize that rings will move in a circular direction around a piston as the piston moves up and down in the cylinder. AFter wear patterns get so bad in a higher milage engine, then the rings stop to move and carbon builds up around them, also causing further problems. It's how an engine wears out.  I'm done with engine building 101. HOpe this helps.</blockquote>