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Diffrenece Between 12g202 And 12a1456


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#1 alexandre63

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Posted 04 July 2011 - 07:04 AM

hello I have a technical question because I have compare the 2 intek valves and the diamater are the same between the 2 heads 27.9
the only difference are the diametre of the interne :12G202 26.4 et la 12A 25.4

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some one had already had saw this one ?
alex

#2 alexandre63

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Posted 04 July 2011 - 09:47 AM

bump

#3 MRA

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Posted 05 July 2011 - 09:57 PM

There are lots of subtle differences, within the castings for instance...

#4 bmcecosse

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Posted 05 July 2011 - 10:03 PM

I suspect someone has fitted the larger (202) type inlet valves into your 12A head......., to no good purpose of course! The 202 is a better head, but nowhere near as good as the 295 head or of course the 940 head.




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