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-   -   What group 6, group 5 really mean for cils ? (http://forums.pelicanparts.com/porsche-911-technical-forum/972619-what-group-6-group-5-really-mean-cils.html)

prebordao 10-04-2017 12:25 AM

What group 6, group 5 really mean for cils ?
 
When buying / changing cilinders, I know you have to match the group number. But what do they really mean, please ?

SWS911 10-04-2017 04:06 AM

The distance from the base, where it meets the case, to the top, where it meets the head.
I don't remember which is taller, but I'm sure someone here does.

prebordao 10-04-2017 04:52 AM

So, even when replacing everything we should match the group with the older one?


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