| have you pulled your oil filter and drained your oil at all recently? Just curious to know if you have any debris in the filter element. The noise is def rpm dependant which means its not an wrist pin. Wrist pin would give you noise through the entire rev range from idle all the way up. To me that sounds like a collapsed lifter. Can you verify for me when you rev the engine can you put a stethascope on the block or on the pan and hear any knocking/tapping from the bottom end? If not then its something up top and not the rotating assembly. If you need any other help feel free to give me a call. Good luck
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