Triumph GT6 And Spitfire Message Board: Re: Shaving GT6 head

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Re: Shaving GT6 head

Posted by Glen on 1/1/2009, 4:27 pm, in reply to "Re: Shaving GT6 head"
70.149.104.100

I agree, unless you know that the head is stock thickness, a quoted amount of removal will be little more accurate than a best guess.
Another point is that the depth of the valve heads in the seats, and also the type of valve head, will affect the chamber volume.
It's best to establish your "valve job", and then measure cc.

Glen

--Previous Message--
: Craig,
: No argument with Mike, but how do you
: know for sure that the head has not
: been shaved already?
:
: Never, ever, shave a head without
: measuring the chamber volumes and doing
: the CR calculation.
:
: John
:

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--Previous Message-- : I agree, unless you know that the head is : stock thickness, a quoted amount of : removal will be little more accurate : than a best guess. : Another point is that the depth of the : valve heads in the seats, and also the : type of valve head, will affect the : chamber volume. : It's best to establish your "valve : job", and then measure cc. : : Glen : : --Previous Message-- : Craig, : No argument with Mike, but how do you : know for sure that the head has not : been shaved already? : : Never, ever, shave a head without : measuring the chamber volumes and doing : the CR calculation. : : John : : :

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