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Thread: 68S vs 69S head and pistons

  1. 03-01-2013, 01:35 AM #1
    Christophe Penard
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    68S vs 69S head and pistons

    Hello

    I begin to rebuild my 68S engine. I also have pistons and heads from a 69S.

    I wondered if it's a good upgrade .

    45/39 vs 42/38 valve size is usefull? (port size are identical)

    69S piston have a little higher dome than 68S . Usefull?

    Thanks
    Christophe
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  2. 03-04-2013, 04:05 AM #2
    Christophe Penard
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    nobody - no idea?
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  3. 03-04-2013, 04:39 AM #3
    andrea70
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    christophe
    69 is better than 68
    70 is better than 69
    Etc
    Etc
    Etc
    991 is better that 997

    This is porsche philosophy.
    Registry Member #1414
    NOSGRUPPE
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  4. 03-04-2013, 04:55 AM #4
    beh911
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    It all depends on what the goal of your build is.

    If you are building out a 68S engine for a 68S, my preference would be to keep it original and use all 68 parts.
    1969 S Coupe #761
    Early S Registry #1624
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  5. 03-04-2013, 05:38 AM #5
    Christophe Penard
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    I have several advice in the same way. I don't rebuild for racing purpose so I'll put 68S on my 901/02
    Thanks
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