Re: Rod knockin'
I'll take a stab, how about a broken valve spring (Using ESP). BTW how was it running noise-wise before the head swap? Maybe it is time to drop the pan for a look-see. Pulling the pan is always a good idea for any engine you or any new owner is not intimately familiar with.
Last edited by J Franklin; 03-14-2018 at 10:21 PM.
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