Here is a '65 Commando (four speed) but the video presentation is calling it a 318. The racing stripe comes down too far in front and not far enough down in the rear, which throws the look off a little bit.
I went to look a 66 Barracuda for sale long time ago. Owner claimed the motor was the original 318. I told him, no, if it was the original motor it was a 273. He got mad, said, NO it was a 318!!! I didn't argue with him, it wasn't really what I wanted anyway, so I just left.