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Thread: 911E Pistons in a 911S

  1. #1

    911E Pistons in a 911S

    I purchased a 1971 911S that recently had the engine rebuilt. The seller supplied me with all of the receipts and in looking at the rebuild receipt I see that a set of new pistons were installed with the notation "911E lower compression". Why would 911E pistons be used instead of the S pistons. Any help would be appreciated.

  2. #2

    Didn't you post this same question a few days ago? Look down a few posts on the board and you will see that pwd72S answered your first post. He guessed it was to lower compression to allow for today's gas formulations.


  3. #3
    Thanks ttweed. I'm not sure how this got posted twice.

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