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Old 02-29-2020, 04:51 PM   #1
Don
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Default Valve clearance for 38 21 stud

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
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Old 02-29-2020, 05:42 PM   #2
estout81
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Default Re: Valve clearance for 38 21 stud

My old Motors manual say's .012I&.014EX.
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Old 02-29-2020, 05:53 PM   #3
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Default Re: Valve clearance for 38 21 stud

Thanks that’s what I’m going with !!!!!
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Old 02-29-2020, 08:32 PM   #4
JSeery
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Default Re: Valve clearance for 38 21 stud

It really depends on the cam and the cam grinders specifications. If it is stock, then it is Fords specifications.
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Old 03-01-2020, 09:05 AM   #5
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Default Re: Valve clearance for 38 21 stud

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.
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Old 03-02-2020, 07:24 PM   #6
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Default Re: Valve clearance for 38 21 stud

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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]
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