Awesome! Yeah, it looks pretty good in there, especially for the mileage.
I'm wondering if that rocker is in line with the hole in the PCV baffle and it's just from years of oil dripping back onto it and cooling when parked. It's great that you don't have any or much oil consumption, but I'd still get that updated cover.
I wouldn't say the stock rocker bearings are "prone to failure". At least, not in a stock setup. They're the same rocker design used across all LS engines including the high-performance car variants spinning 7,000 RPM and with more cam action happening. To me, the reports of their failure has become more of a Hegelian dialectic. I'd trust the stock ones over the bushing style. I researched stock and aftermarket needle bearings versus the various bushing styles to exhaustion a few months ago. My TSP cam is decently comparable to a stock LS6 cam and I have the "heavier duty" LS6 valve springs and my redline is about 600 RPM
less than that of the LS6. I decided that if stock rockers do fine in an LS6, they'd be fine in my warmed over LMG. Problems arise with stock bearings (and still with the aftermarket bushings) on more heavily modded engines with big cams, high spring pressures, higher RPM, etc. I did my engine refresh at 200K and put the original rockers back in with the intent to swap them later once I had settled on some aftermarket ones. They did just fine with all the "abuse" following the refresh with upgrades, but I wanted the peace of mind of at least having something new. Back in May, I bought 16 new GM OEM rockers off eBay for $9.99 each and haven't given it a second thought. If I were to go aftermarket, these are what I'd get:
http://www.ws6project.com/user_stor...cts_id=9356&osCsid=med8ej8uujfipsmotus6cus9s1