Hi Doug, welcome. I'm acramstr. And I will be assisting you today. I would change the valve seals anyway. The oil cant really travel up to get in the cylinders so it must be coming down the valve stems. These engines will leak through the valve seals when they get this many miles on them .I have replaced many sets on these for this. I have never seen a cracked head on one of these 3.2 motors but if they are still off you should have them pressure tested. I have not seen any ring problems in these in fact I have many customers with over 300k on these that don't burn oil through the rings . If there is anything else I can help you with let me know.
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