That link from the website you referenced contains lots of information gleaned from various sources (including me), without any attribution, presented as the author's own information. Use it cautiously. There's a not too complimentary term for that in the literary world. The most common specification you'll find for stovebolt solid lifter adjusrment is a "hot" setting of .006" for intake valves, and .016" for exhausts. There are other specs, depending on which service manual you choose to consult. "Heavy duty" engines such as dump trucks, etc. are often specified at a couple of thousandths wider clearance, since those engines spent most of their time working hard at high RPM, pulling heavy loads. Non-stock cams such as Melling, Elgin, Howard's, "Bulldog", etc. have whatever clearance the cam manufacturer chose to build into his design. The only "foolproof" way to determiine adjustment is to use the manufacturer's "cam card" or measure the lobe profile yourself.
I like to add .002" to the spec clearance when doing a "cold" adjustment, and recheck and tweak the results once the engine is fully warmed up. That has worked well for me for the past 65+ years and literallty hundreds of valve adjustments. That allows for pushrod and valve stem expansion due to heat as the engine reaches full operating temperature. Have fun!
Jerry
Last edited by Phak1; 04/12/2024 7:57 PM. Reason: Edited to replace copy/paste with link
