I;m having a problem with my setup. my valve is knocking. it coming more from the dist.. side. i adjust the valve. check and redo the timing. i have ycp piston. a copy of eagle rod call star.. From tunertoys.com i have to notch the block for the rods. i ope the pan and check it again to see if its hitting. and its not. the knock is coming from the valve.. i changed 3 head that i had too. i try useing thinker oil and its the same. i needed in help .. anything got any idea.

 

check the lost motion assembly on that side of the head. maybe it is not working correctly?

Is the valve lash gap still the same as what you set it to?

Did you do the valve adjustment when the motor was ice cold (had not been driven for hours)?

 

i agree...check the LMA's. I had a ticking noise coming from what i thought was the center of the head last fall, but the timing belt had shredded and was clicking inside the cover...make sure to check the obvious stuff first

 

sure its not piston slap?