valve adjustment

[100%Chevy]

I use the book "How To Rebuild Your Small Block Chevy"
Probably the most used book on the market.Although a little dated now,it's still the single best source of information on small block Chevies.
It calls for 3/4 turn after slight resistance.This is a starting point for me.After starting and warming the engine,I will loosen each(keeping up with the amount I turn the nut)until I hear noise,then re-tighten it till the noise stops.Sometimes it's more,some less.I do this several times on all of them.
On new engines,you may have to do it again later.On worn engines,some lifters may be too weak to ever be quiet!New parts time!
Mike.