Got the oil analysis today. Looks interesting in that it shows iron wear. That could be the cast iron rocker arms where they were grinding away at the valve stem tips. The high lead is from the leaded fuel most likely. My SD455 had similar high lead readings from using the same leaded 100 octane AV-Gas. Though the bearings on the 460 were down to copper on the mains. The machinist said the bearings looked like every other big block Ford he has taken apart over the years.
Last edited by njsteve; 10-03-2018 at 02:10 AM.
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10-03-2018, 01:02 AM
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