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Power Strokes
7.3 Aftermarket
lapping valves...
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[QUOTE="PowerstrokeJunkie, post: 499753, member: 230"] My old engine had some pretty sorry looking intake valves at around 180,000 miles when i put on the ported heads. They had worn where the valve seals against the seat so bad, the lip on the outermost diameter of the valve was thin enough to cut stuff, dont know how many more miles it would have gone before the spring would start to pull them up into the port.. *shrug* [/QUOTE]
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