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-   -   Euro spec intake port (http://forums.pelicanparts.com/911-engine-rebuilding-forum/824535-euro-spec-intake-port.html)

garrett490 08-08-2014 04:34 PM
Euro spec intake port
 
What's the 911 SC euro intake port spec? 39mm? Is this the only port on the heads that larger than US version or are exhaust and valves bigger also?

Flat6pac 08-08-2014 05:11 PM
All valves are same size, 3.0, 3.2,and3.3
76/77 3.0, 78/79 US andROW and 80 to 83euro are all large port heads
Bruce

garrett490 08-08-2014 07:23 PM
Large port heads...what's the measurement? Does that mean both the intake and exhaust ports or just the intake?

cgarr 08-08-2014 07:29 PM
The exhaust are both the same at 35mm the intakes are 39mm early and 34mm late SC


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