1991 Blazer w/1995 B5.9 Cummins, 9560 miles, Delo 400LE 5W-40

[MaxPF]

My engine has a minor silicon and major copper problem. Silicon is from a damaged air filter that wasn't discovered for a couple weeks. The damage was at the base, and was leaking unfiltered air into the intake stream.

Anyone want to take a guess as to the probable source of the copper?

 

[Strokenmerc]

I see that BS mentions a reseal, was copper anti-seize used or is there a new oil cooler installed? Just throwing ideas out there.