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Message: [QUOTE="elrodalexander73, post: 1420655, member: 16217"] I am posting pics of bore wear on a 50k mile engine I had built with head studs, comp 910s and Smith Bros' a while back. The engine was removed from my wrecked F350 and I am in the process of adding a cam and resealing the engine to put in my 95 I have purchased. There appears to be minor scuffing and scoring present. I made note that when assembling this engine with the bores honed to 320 grit the rings began to instantly score the cylinders. I had made several phone calls to different builders and all said run it. Engine took 3 full oil changes to break in and had almost zero blowby and oil consumption at time of wreck. I first removed exhaust manifolds and found zero evidence of oil ever in exhaust ports. Stem seals were doing their jobs and no oil on base of valve. My question here is does the plasma moly cause irregular wear patterns that are much different than the original factory rings. This engine was so tight that even at 30 degrees F. you needed no glow plug assistance to start engine. I used FFD 250/200s and tuning from G.H. and PHP and egts were never sustained above 1100 degrees F and a few bouts of 1300 degrees horsing around. I will post pics in next reply box. [/QUOTE]

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