pi/non pi

Discussion in 'SVT Tech Forum' started by 98svtconvert, Aug 20, 2004.

  1. 98svtconvert

    98svtconvert New Member

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    just curious. what is pi and non pi. i have seen this used in reference towards heads. thanks.
     
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  2. ShadyRascal

    ShadyRascal New Member

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    I believe that stands for "Performance Improved", referring to the changes they made to the 2valve heads beginning in 1999.
     
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