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05Pzev

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  1. Help! EJ251 heads on EH259?

    05Pzev replied to Ercoupe's topic in 1990 to Present Legacy, Impreza, Outback, Forester, Baja, WRX&WrxSTI, SVX
    Are you sure that they are domed and not dished? They look like they have negative , not positive volume to me.

  2. Help! EJ251 heads on EH259?

    05Pzev replied to Ercoupe's topic in 1990 to Present Legacy, Impreza, Outback, Forester, Baja, WRX&WrxSTI, SVX
    Sorry this is old but does anyone know if we can put any of the forged piston offerings in an EJ259 motor (actually 2005 California emissions) and end up with a 9-10:1 CR? Assuming we can get CR correct by picking the right piston dish, do I still need to worry about valve contact? My goal is a forged bottom end for my supercharged EJ259.

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