Jus10dun said:if it was valve spring chatter like supramacist said. than how can I verify this?
You can't because all of those are internals for the head. So you would have to pull the head. So you check everything else first. You would hear it more on the top of your engine if it's valve spring chatter.
Your'e problem is internal for sure. That means big problems normally. Keep going over the engine make sure you know what IS quiet. Unkess like cuel suggested and something is loose and tapping the block, but this sounds bigger than that to me. Might be that advanced auto parts store crank. Just kidding dude. Good luck and keep posting.
Saw'd off broomstick is all I am saying.
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