Valve clearance for 38 21 stud

[Don]

I’ve read a lot on how to do valve but have not found anywhere we’re a person has given the correct settings ,these are non adjustable valves!have all the tools so going old school all I need is the lash settings. ,thanks
I think I have used .012 I and .014 on ex

 

[estout81]

My old Motors manual say's .012I&.014EX.

 

[Don]

Thanks that’s what I’m going with !!!!!

 

[JSeery]

It really depends on the cam and the cam grinders specifications. If it is stock, then it is Fords specifications.

 

[big job]

In .012 Ex .014 too tight just take time grinding the stem. I made a fixture just a piece
of pipe that fits the valve stem and clamped that to the side fine grinder wheel. As I grind and rotate the valve to the wheel just nipping it check & repeat. Lash too loose, then you
have to reface the valve and or the seat, to set it deeper.

 

[Talkwrench]

If a standard cam I went ; int .010 -.012 exh .012 -.014 , Its been 18 months now daily driving , quiet , no problems. Spring were progressively wound and slightly heavier than stock [ Gary's one piece valve set]