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-   -   valve spring hight when using 964 cams? (http://forums.pelicanparts.com/911-engine-rebuilding-forum/801407-valve-spring-hight-when-using-964-cams.html)

JFairman 03-16-2014 06:16 AM
valve spring hight when using 964 cams?
 
Hi, I'm asking what the correct valve spring hight should be when using 964 cams in a 911 turbo head?
I searched and could not find it.
thanks in advance.

911nut 03-16-2014 08:02 AM
Quote:
Originally Posted by JFairman (Post 7963907)
Hi, I'm asking what the correct valve spring hight should be when using 964 cams in a 911 turbo head?
I searched and could not find it.
thanks in advance.
Per Bruce Anderson, 34.5 mm for intake and exhaust. In the following sentence, he then states it should be 34.5 mm for intake and 33.5 mm for exhaust.
I would set both to 34.5 mm, just like the recommendation for SC cams.


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