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Power Strokes
6.4 Tech
6.4 rockers wore severely.
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[QUOTE="weekendwarriorfsw32, post: 418091, member: 771"] Any one else seeing a lot of cams going flat lately? Seeing a lot in the 6.4's. One theory was the oil quality has been diminishing along with zinc but we just had a Amsoil dealer come in with his 6.0 saying his metals in his oil was going up in his oil test, he just came in to do head studs but we looked a little deeper and pulled the lifters out and in cylinder 6 intake lope was very very damaged and it was starting to show wear on the lifter. He also had an oil bypass that filtered down to 2 microns. He does oil changes every 3,000 to so in my mind that kinda got rid of the oil quality theory. Is the material that the cams and lifters are being made out of being cheaper and the quality is going down? Something else interesting is that the part number for lifters is the same for the 7.3, 6.0, and 6.4 and I have never seen this happen to a 7.3. [/QUOTE]
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