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Thread: Piston dome.

  1. #1
    Senior Member MASTER BUILDER
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    Piston dome.

    If I remove 10 gr.weight from the dome of a 2618 piston what would the change be in dome cc.Thanks Bill Bates.

  2. #2
    Senior Member RACING JUNKIE
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    That's almost impossible to caculate due to the configuration of the dome shape. The only acurate way is to make a reverse cup and CC it before and after.

    Zip.

  3. #3
    Senior Member MASTER BUILDER
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    Hi Zip, I might have asked that the wrong way.What I would like to know is how much 1 cc of 2618 aluminum weighs.Say 1 cc=5 gr.I can do work to the top of a piston and know by the weight differance before and after what I removed in cc.It's easyer for me to check weight than dome cc. How's the 434 doing.Bill Bates.

  4. #4
    Senior Member RACING JUNKIE
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    That makes it easier, it's 2.6 to 2.8 grams per CC of 2618 alum.

    The 434" is ready to drop in, i was just waiting for the end of the season. I've got to make some changes in my motor mounts and front plate due to the 2" to 2 1/8 step headers, in fact i have to cut the stock motor mounts off the chassis to clear the headers. They are Lemons and i don't want to beat up a $1400.00 set of headers.

    Zip.

  5. #5
    Senior Member MASTER BUILDER
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    Thanks Zip that's what I was looking for.I hear you on the Lemons,nice headers.Bill Bates.


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