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Reload this Page IO-390 Exhaust outlet diameter???
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Old 08-13-2009, 07:43 AM
grubac grubac is offline
 
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Default IO-390 Exhaust outlet diameter???
Gentlemen

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

regards,

Grubac
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Old 08-13-2009, 11:33 AM
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Noah Noah is offline
 
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No, but it's the same as an IO-360 with angle valve heads, like an A1B6...
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Highest Regards,

Noah F, RV-7A

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Old 08-13-2009, 01:45 PM
mahlon_r mahlon_r is offline
 
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1.75"
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Mahlon
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Old 08-13-2009, 11:18 PM
grubac grubac is offline
 
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Nice! Thanks for the quick response.

Grubac
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