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  1. MKIV (1993-1998)
    Im rebuilding a 1999 2jz, from a gs300 and im in the process of choosing a headgasket. Im planning on boosting the engine and would like to get a thicker headgasket, (to lower compression) but whenever i look at their specs, it always says bore 87mm or 87.5. I didnt bore out my cylinders so...
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