72 360, cam/lifter failure, replacements?

CichliDart said

I did NOT mix oils when I did the oil change. I may just delete the backstory since people can’t get past it.

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I went by YOUR post. At one time or another you were mixing oil, so it IS about mixing oil and using cheap assed oil.

You might not like my response but I don’t care. Playing tribologist is a bad thing.

Buying cheap assed junk oil is a bad thing. It sounded to me like you at least thought you killed an engine by using junk oil.

This isn’t for you. This is for guys who come along later.

DO NOT MIX OIL.

DO NOT BUY CHEAP JUNK OIL.