If it was me and that is me I am talking about. I would replace the head gasket and leave the rest alone. If it works don't fix it.
If you replace the cam you will need to replace all the extra bits .. I don't know the 3.9 setup. so you would need to replace Lifters and (chian and/or gears) and the with 250k on it a line bore and bearings etc etc etc..
And cams need running in to...First 10min will make or break ya here..
Its your call..![]()


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