X15 CM2350 X116B Valve Guide Seals

[Hunter013]

300K miles, 15K hours

Pulled off the exhaust manifold and turbo to fix a broken manifold bolt. Saw 2 exhaust valves are leaking oil. Exhaust manifold is dry. I’m assuming I caught it pretty early. Should I just replace the valve seals? Or is that just a temporary fix and I should send the head out to get checked? Some people seem to say it’s early for this failure and others say it’s within the range for this to happen. The truck was not going through any oil and had no lack of power issues. That being said, I lean towards just doing the seals and getting some more life out of the head.