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Thread: Engine case dimensions ?

  1. 08-29-2011, 06:45 AM #1
    ydderf911
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    Engine case dimensions ?

    Hi,
    I'm about to drill bigger holes for cylinders in my 2.4 S engine case.
    I've got 6 cylinders+pistons from a 2.7l and i want to install them.

    My problem is that i've destroyed my 2.4l cylinders and i don't know what is the tolerance between the engine case and the cylinder.

    So is there anyboy knowing the diameter of the engine case holes for a 2.7l ?

    Rgds.
    Freddy
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  2. 08-29-2011, 08:57 AM #2
    Bert
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    From memory, the 2.7 cylinder spigots should be 97 mm. The 2.4 cylinder spigots are 92 mm.

    I hope someone with reference books can confirm.

    Good luck.
    Bert Jayasekera
    1970 911T - Tangerine Orange
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  3. 08-29-2011, 08:32 PM #3
    ydderf911
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    Thks BERT for this reply.
    97mm is ok.
    But Tolerance for the engine case ? +/- ?

    I think the dimension is 97,2 +/-0,05 but not sure ?

    Rgds
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  4. 08-30-2011, 12:50 PM #4
    Bert
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    Sorry. I don't have a spec book for the 2.7 engines.
    Bert Jayasekera
    1970 911T - Tangerine Orange
    Early 911S Registry #494
    R Gruppe #167
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