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  1. #11
    PWCToday.com Is My Home Away From Home timothy's Avatar
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    Re: swirl dome head for a 650 kawasaki ,..how much compression ?

    1ok

  2. #12
    PWCToday.com Is My Home Away From Home timothy's Avatar
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    Re: swirl dome head for a 650 kawasaki ,..how much compression ?

    F'n helmet hope they got some lightweight more compact 1's now.

  3. #13
    Frequent Poster blown's Avatar
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    Re: swirl dome head for a 650 kawasaki ,..how much compression ?

    Pro 650 AVX Aluminum Head Race Gas- EP105
    Domes shaped for race fuel
    Designed for high compression motors
    Dyno and race proven
    27% more cooling volume
    3 cooling line bosses
    Additional mass above domes
    Domes recessed .040
    Mill up to .040 without recutting domes.

    Pro 650 AVX Aluminum Head- EP100 Pump Gas Domes
    Domes shaped for 95 octane or lower
    Horsepower gain throughout powerband
    Dyno and race proven
    27% more cooling volume
    3 cooling line bosses
    Additional mass above domes
    Domes recessed .040
    Mill up to .040 without recutting domes.
    So is this the race fuel head or pump gas?

  4. #14
    resident guru jeff 650sx's Avatar
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    Re: swirl dome head for a 650 kawasaki ,..how much compression ?

    Quote Originally Posted by blown View Post
    So is this the race fuel head or pump gas?
    Based on the guy who got 210/215 psi it is definitely a race fuel head. Unless you can find a thick head gasket. A rough estimate for psi change is 1 psi for every .001" added through the head gasket
    2008 Kawasaki 800 SXR - Stock Spec #27
    2007 Kawasaki SXR 1100 -Open #27
    http://www.ipdracing.com/
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    2013 Great Lakes Watercross Novice Ski stock and GP Champion

  5. #15
    PWCToday.com Is My Home Away From Home jdpilot's Avatar
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    Re: swirl dome head for a 650 kawasaki ,..how much compression ?

    Quote Originally Posted by Bar Tab View Post
    It looks like they made two form the Ocean Pro 1991 Orderbook.

    Pro 650 AVX Aluminum Head Race Gas- EP105
    Domes shaped for race fuel
    Designed for high compression motors
    Dyno and race proven
    27% more cooling volume
    3 cooling line bosses
    Additional mass above domes
    Domes recessed .040
    Mill up to .040 without recutting domes.

    Pro 650 AVX Aluminum Head- EP100 Pump Gas Domes
    Domes shaped for 95 octane or lower
    Horsepower gain throughout powerband
    Dyno and race proven
    27% more cooling volume
    3 cooling line bosses
    Additional mass above domes
    Domes recessed .040
    Mill up to .040 without recutting domes.

    Not sure that this is much help
    Can you scan and post the pages from the ocean pro order book?

    Prospect Mountain Powersports
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    85 js440- super stock- Region 8 Novice

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