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Stock height of S14 head?

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  • #31
    Thread revival. I just measured my spare head which I have had straightened and machined. I can still just see the circles mentioned above and my measurements (done with both verniers and a 75mm-100mm micrometer) measure an average of 95.6mm.

    So my head is 0.4mm less than original untouched height.

    I would like to bump up the stock compression ratio as safely as possible using head gasket thickness as a tool. Has anyone measured "piston to head" clearance and "piston to valve" clearance on a stock untouched engine?

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