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.



https://cimg1.ibsrv.net/gimg/www.off...9cc90fea7c.jpg
https://cimg0.ibsrv.net/gimg/www.off...28a1d1ec9e.jpg
https://cimg6.ibsrv.net/gimg/www.off...7d75630ffd.jpg

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


https://cimg3.ibsrv.net/gimg/www.off...903c0f3318.jpg

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


https://cimg5.ibsrv.net/gimg/www.off...5363e7a7d6.jpg