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Thread: piston help

  1. #11
    Senior Member
    Join Date
    Feb 2009
    Posts
    2,626
    I suspect that the 1.242" compression height measurement is incorrect. Venolia lists pistons with a 1.280" compression height for use with 4.250" stroke on a 6.385" rod. That would leave the piston .010" down in a 9.8" deck block.
    Venolia Pistons (http://www.venolia.com/catalog2005.pdf#search='venolia piston') Scroll down to the bottom of page 10 and all of page 11

  2. #12
    steelcomp
    There ya go...can't argue with hard info like that.
    Thanks Oldsquirt.

  3. #13
    Nucking futs
    I suspect that the 1.242" compression height measurement is incorrect. Venolia lists pistons with a 1.280" compression height for use with 4.250" stroke on a 6.385" rod. That would leave the piston .010" down in a 9.8" deck block.
    Venolia Pistons (http://www.venolia.com/catalog2005.pdf#search='venolia piston') Scroll down to the bottom of page 10 and all of page 11
    We have a winner. After measuring a bit more this all worked out
    1.280 ch 13.1 comp. 4.25 stroke 6.385 rod pn 39369. Thanks a bunch for your help.
    Bruce said exactly what allen @ bpe said but it did'nt make sence to me.that was a weird combo for sure.

  4. #14
    steelcomp
    We have a winner. After measuring a bit more this all worked out
    1.280 ch 13.1 comp. 4.25 stroke 6.385 rod pn 39369. Thanks a bunch for your help.
    Bruce said exactly what allen @ bpe said but it did'nt make sence to me.that was a weird combo for sure.
    So how much??

  5. #15
    Nucking futs
    300 plus shipping

  6. #16
    steelcomp
    300 plus shippingWith pins? If so, what are they?

  7. #17
    Nucking futs
    No pins. just pistons.

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