Re: Piston to valve clearance.
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Re: Piston to valve clearance.



OK, here is why I asked.. On looking at my newly machined 516
heads( just enough head mill to clean up ) closed chamber-- replacing
open chamber heads, It appears that if the valve opens at approx.  .
484 lift, the valves will  touch the top of the stock piston.   I
haven't actually measured it yet, not sure how. Would you place a
straight edge  across the head surface at where the valves would be
closest to the piston and then measure closed valves to  top of piston
would have .484* clearance?  I don't want to assemble the valve-train
and install head on engine yet. ...............................MO

On Dec 6, 1:24 am, MO <mic...@xxxxxxxxxxxxxxx> wrote:
> Back on track?.............MO
>
> On Dec 5, 12:18 am, Dodger7...@xxxxxxx wrote:
>
>
>
> > It would depend on cam lobe duration, but do not think that engine could
> > ever run with that much duration,,,,
>
> > In a message dated 12/4/2011 11:58:45 P.M. Central Standard Time,
>
> > mic...@xxxxxxxxxxxxxxx writes:
>
> > are the  valves ever open when the piston is
> > at top dead center on any cycle  ?- Hide quoted text -
>
> - Show quoted text -

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