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-   -   IO-390 Exhaust outlet diameter??? (https://vansairforce.net/community/showthread.php?t=46708)

grubac 08-13-2009 07:43 AM

IO-390 Exhaust outlet diameter???
 
Gentlemen

Does anyone know the diameter of the cylinder head exhaust outlet on Lycomings IO-390????

regards,

Grubac

Noah 08-13-2009 11:33 AM

No, but it's the same as an IO-360 with angle valve heads, like an A1B6...

mahlon_r 08-13-2009 01:45 PM

1.75"
Good Luck,
Mahlon
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grubac 08-13-2009 11:18 PM

Nice! Thanks for the quick response.

Grubac


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