Is it a rod knock.

xarewhyayen

276 whp - 324 tq @ 13psi
Oct 3, 2005
959
0
0
39
Philly
if you didnt adjust the clearances, yes, it will cause tapping .. the cams push on solid lifters, on top of those lifters are shims. you have to measure the clearance between the cam and the lifter with a feeler gauge and check if its to spec. if not you have to change out the shims. the TSRM will tell you all you need to do if that does happen to be your problem
 

xarewhyayen

276 whp - 324 tq @ 13psi
Oct 3, 2005
959
0
0
39
Philly
get a soundclip up :) see knocking to one person is a tap to another.. hard to diagnose something when you just say "knock"