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  1. I

    Yx160 barrel on gpx/z155

    I have read that the cylinder and head from a yx160 will fit the z155 however I have noticed the yx160 is a 57mm stroke and the z155 a 55mm stroke, if I use the yx160 cylinder will it not result in a really low compression ratio? My z155 cylinder measures 74.5mm from base to head, does anyone...
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