Commando vs Charger

Yup, '65-'67. Through the entire run of the 273 4bbl. engine.
I'm not positive what designation/air cleaner was used on the '66 275 h.p. D/Stock Dart, though. And that was Dodge only, no Plymouth version.
No callout on the D/Dart unsilenced air cleaner. It was 14" in dia and painted black.. Made of unobtainium along with the Holley carb.