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Lycoming O-360 Case


Registered Users
Feb 21, 2013
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I have a Lycoming O-360 Case that was checked out by Divco but does not have any yellow tags with it for sale. I can provide pictures on request. This is a wide deck case. Asking $900, and it's listed on Barnstormers as well.

Feel free to contact me at [email protected]

Last edited:


Oct 3, 2012
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Hey there. I am looking for a 360 case. Haven't been looking for one seriously yet. It would be for an A4A. But since I haven't been seriously looking I am not sure whether an A4A is a wide deck or a narrow deck.
For those that don't know the difference the actual flat face flange deck width that the cylinder mates up against is narrow on early cases and wider on later cases. The later wide deck cases take cylinders that have thick flanges on the cylinder base, and the early narrow deck cylinders have cylinders with thinner cylinder base flanges that require the special chamfered inner edge half moon spacers that fit on top of the cylinder hold down base flanges.

But the question I would like to ask is. Can you weight the case there 9191A.

And does it have the mounting ears on it, and which ones. The engine mount ears that are the p.n. 70456 , 30 degree small i.d. dynafocal holes, or the large dynafocal mount holes of the 18 degree (or so called 20 degree) dynafocal mounts ears?

I am logging some weights of items I am curious about as to the differences of 540 and 360 once and for all for myself as I have all the parts I need for the differences here on the bench between the 540 narrow deck and 360 and will list them soon.

Only problem I don't have a hollow shaft thick flange 360 crank to weigh. Nor the 360 case.

I have a std the thick flange solid shaft non-counterweighted 360 crank to weigh.

And a 540 case, and std 540 thick flange hollow shaft counterweighted crank to weigh. Everything on the bench clean and overhauled. With no mount ears on it either, or hardware.

I should have kept the std A1A hollow shaft non counterweighted crank I had now that I have become weight conscious.
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Registered Users
Lifetime Supporter
May 25, 2014
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I have a wide deck case for sale. Overhauled by divco with paperwork

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