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Thread: Ok motor math gurus...

  1. G60247
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    Ok motor math gurus...

    05-08-2012 12:44 PM #1
    I'm looking to pull a cheapskate move and buy a thicker head gasket to solve my 9:1 piston issue until I can gather funds to build the motor I want. So, 83mm Ross 9:1 pistons, ported head with 7mm valves, cleaned up chamber (may increase the chamber some) what thickness gasket would I need to at least drop to a 8.5:1?? Thanks if you found the time cosmetic says they can make a gasket from .027"-.140" and me not knowing the stock thickness
    Boycott the brit/wild orchid (youve been warned)
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  3. stntman
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    05-08-2012 02:18 PM #2
    i bought the bahnbrenner one and it is a nice product. it lowers it 1 point
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  4. G60247
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    05-08-2012 02:20 PM #3
    On an 83 mm bore? Most head gaskets are only good to 82.5 I believe.
    Boycott the brit/wild orchid (youve been warned)
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  5. stntman
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    05-10-2012 08:03 PM #4
    give them a call. i bet they could have one made that is bored over
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