S60 Detroit Crank Bearings

How much labor time does it take to replace all the crank bearings on a 2002 Series 60 Detroit?

 

For what it's was worth, I asked Google Gemini (AI), 8-12 hrs was the answer. I imagine a mechanic whose done it enough could half that time. So 5 hrs seems right. Thanks

 

I'm at a shop whose doing the work. Had high lead come in an oil sample.

 

It's definitely crank bearings. Checked it already. Cam and bearings were replaced 6k miles ago, along with rockers, (one rocker developed play, so replaced them all with others I had), so didn't look there. Since it was only high lead, that pretty much ruled out the air compressor-so I was told. No shaft play in the turbo, so leaving it alone as it has only 225k miles on it. Went into crank, and there it was. I eyeballed a bad bearing. I want to know the labor just to "keep them honest." Hopefully lead is coincidentally coming from 2 places.

 

I just got told it'll be about $1,500 for labor, $500 for all main and rod bearings, plus new oil and filters. Sounds reasonable to me.