My oil consumption has been about the same for the last approximately 100K miles, it's not something that is progressing so I'm not focused on that issue now. I have been reading the 350SDL posts here for a number of years now. Is it possible that bad valve guide/seals are contributing to the oil consumption? I can and have lived with the oil consumption for about 10 years now. Engine runs fine with no abnormal noises and plenty of power.

The head gasket is my main issue now.

I'm trying to be optimistic, I am aware of the risks and I'm willing to take the gamble at this point. Trying to figure out if I'm overlooking anything other than the potential rod problem?

Thank you.