What is Ticking/Tapping noise coming from engine once RPM's reach 2k? on 1995 Ford Escort

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Engine lost timing upon initial restart death noise. Towed home, replaced head. Engine runs GREAT except when revving accelerator ticking/tapping noise @ 2k rpm underload and in park. Checked connecting rod bearing anyways, but NOT a knocking sound.
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how did you check the bearings?? what was the clearance??

could be a lifter or a bad valve seat.

Just checked to see if I could get some swinging in connecting rod bearings; doubtful if it's the vavle seat or lifters because I just replaced the head and would hear noise when idling.