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Noticing some mild to heavy oil loss on my 660 hardly smokes from what I can see, does a little more on the old days for the first 10 mins then settles out, question is guys and gals when I do my valve seals what else would yens do when you’re in there? I’ve done head gasket and new piston/rings les that 1000 miles ago s I’m hoping those are still good aside from head gasket but what else would you put new in while I have it Sparta thanks
 

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If you plan to keep it for a long time. I would put in new valves, guides and seals. However personally I would take the head to an engine guy for a complete rebuild.
 
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