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I'm new to engine knocking so if I say something obvious or stupid just bear with me. I have a basically stock mark IV 427 with two bolt mains. It has recently developed an engine knock that only happens when it has reached full operation temperature (~180.) I had tried to pinpoint the source of the knock and it seems to coming from the bottom of the engine (or at least that is where it is the loudest, I was not able to trace it to a specific cylinder.) the knock is really loud at idle, but when I increase the engine speed from idle the knock actually goes away ( in other words it only knocks at idle.) At idle the engine has around 40 lbs. of oil pressure.
Thanks,
Bob.
Thanks,
Bob.