You double posted this question. What dual covers are you referring to?

https://www.stovebolt.com/ubbthread...in=153343&Number=1039001#Post1039001

All 216/235/261 engines had one side cover. These engines are in-line sixes (not flat six?).

Most likely you have a 216. In Canada, some 216s and some 235s has long side covers or short side covers. You need to ID the year and size of your engine.


Tim
1954Advance-Design.com
1954 3106 Carryall Suburban
1954 3104 5-window pickup w/Hydra-Matic
The 216 and early 235 engines are not "splash oilers" -- this is a splash oiler.