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Thread: Inj head valve sear recut

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    Inj head valve sear recut

    Just about to get the 3 angle valve seat jobby on the inj head!
    is there a measurement to aim for as regards the fitted length from valve head to spring seat ?
    surely the head shop needs some guidance.
    does he need the new valve so he can get each seat the same as regards the valve stem protuding out of the top?
    😀😀 more info needs from the GURU'S

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    Re: Inj head valve sear recut

    ideally you want all the valves to stick through the head by the same amount, otherwise you will end up with different lift on every valve.

    i aim to cut seats only just deep enough to seat the valves, any deeper and usually you find you are short on valve lift

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