The point I was hoping to bring home to Butch is that the cowling conversion he imagines is not that advantageous over the later cowl for inspection purposes....particularly with respect to the trouble, cost, and certification issues he probably didn't foresee.
EITHER set-up can be inspected by sitting on the ground with a flashlight and peering up the cowl-lower-exits.
A flashlight and a mirror can go a long way to a preflight inspection. And we all know that an oil leak on a O300 is not difficult to detect.
![Laughing :lol:](./images/smilies/icon_lol.gif)
In the case of such findings,...the cowl on BOTH TYPES will have to be removed to properly address the issue, ...and the aforementioned troubled
cowling conversion will not be seen to have been particularly helpful and certainly not frugal.
Butch, with a fat wallet, anything is possible. If you go for it..... Write up an article for the 170 News. I'll pose for a pic with a spoonful of crow.
![Wink :wink:](./images/smilies/icon_wink.gif)