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ported head almost done

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    ported head almost done

    Im just putting some finishing touches on the cylinder head for my euro 323i...



    Fully ported and polished with 2mm larger intake and exhaust valves, skimmed .020" of the surface and gave it new bronze guides. I have a Racetep 274 cam and new springs, rockers and shafts....Im going to rip around with it on the 2.3 until I finish my 2.9 bottom end... :D can you tell I'm excited ?
    "The bitterness of poor quality lingers long after the sweetness of low price is forgotten"

    #2
    Take the polish finish off them ports matey.
    They promote worse economy and zero power gains.
    What you need is a sort of brushed aluminium effect on the ports but not a polished effect.

    Nice work though.

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      #3
      Nice, my brother in law and I are going to port match the exhaust outlets and intake inlets on my eta head to match the 325i intake manfifold and exhaust manifolds when I get it.

      Should turn out very good.

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        #4
        Polish is not good on the intake side, it decreases turbulence. On the exhaust side it is good, it prevents deposits.

        At least that's what I've heard.

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          #5
          The picture is deceiving, there is not a high polish on these ports, the light just got them the right way for the picture ;) The intakes have a brushed, almost satin finish that blends to more of a polish at the seat.
          "The bitterness of poor quality lingers long after the sweetness of low price is forgotten"

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            #6
            In that case you have the perfect finish.

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