Well, my experience is with the SHO motor and the cam sensor just runs off the end of a camshaft. It is just a short cup that rotates, half of the cup's wall is cut away and the sensor goes over the end of the cup, kind of like a Mallory Opti-spark. As the cup rotates, either there is a cup wall in the sensor gap or there isn't.
I'm sure the one pictured is from a pushrod engine with a camshaft, and it plugs into the place where the distributor would go. That's even more applicable to a 440, as it's kind of congested at the front camshaft end.

R.