Rod knock is the rod bearing going bad or missing

. To be certain you have rod knock, look at the engine oil on the dip stick. Is there metal flake in it that makes it sparkle in the light? If so, yup, you've got bearings going bad, if not, it's not rod knock.
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, Jon
Owner of a Red Sled.
If it\'s EFI I can tune it. Specialize in 82-95 GM (yes Lt1\'s)
\"If you can leave black marks on a straight from the time you exit a corner till the time you brake for the next turn.......Then, you have enough horsepower\" - Mark Donohue