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Thread: cossie pistons

  1. #1
    Pit Crew Decade Plus User

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    cossie pistons

    While I have the engine in bits is it worth lowering the compresion?? what ya reckon peeps ?

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    Re: cossie pistons

    It would be worth checking the cr and depending on what sort of power you are running make sure it has the correct cr to suit.
    I like 330HP engine around 7.6 to 7.8:1 and 400HP 7.4:1 anything above that 7.2:1
    If the bore is standard I have some very good 4x4 pistons that are low comped 80

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    Re: cossie pistons

    Don't lower the compression ratio unless you have to.
    It's not a performance enhancement, it's a necessity on high power engines.

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    Re: cossie pistons

    You would't happen to have a 4x4 crank rods and block to go with those would you clint MMmmMm

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    Re: cossie pistons

    I do have a freshly rebuilt bottom end !!!

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    Re: cossie pistons

    Mmmmmmmm Ow much for ?????

  7. #7
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    Re: cossie pistons

    Lee if you are seriously interested give me a call tommorow night.

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