Mine is 16220206

could have cam out this week if that works.

Update:

Got the balancer off, with the right tool things are just a breeze.

Cam is out. Seeing that lobe up close and personal makes me glad the cam is out.

Overall the rest of the cam looks ok, though there's a rough spot on the rear bearing journal.

Turns out this cam is NOT stock. It's a Crower 01401LM.

From Crower's site: Performance level - Beast - Superior upper bottom, mid-range and top end power.
INT/EXH - Dur @ .050” Lift: 213°/222° RR: 1.7/1.7 Gross Lift: .512”/.540” LSA: 112° RPM: 1850 to 5000 Redline: 5500


So, I guess I buy one of these same Crower cams and slide it back in, assuming that somebody at some point tuned these ECMs for the cam?

Input is welcomed.

Cam bearings have some discoloration/scuffing. Looking more and more like this motor needs to come out.

Not that it matters at this point but for future reference, the 1622 is the last four digits of the GM part number and the 0206 is a date code.

Well that took a real turn! Also, that’s not a billet cam core.

Probably a good idea at this point. Do you have an oil filter you could open up to inspect?

I did. When I bought the boat and changed the oil, 9-10 hours ago, I cut open the filter, did not find metal. When I stuck/bent the valve last month I cut open the filter and also found no metal. SO I don't know how long ago all this went down.

Thanks

Another cam bearing pic, no bueno