Old HP magnum 383-440 cam???

The reason I posted the cam I did was because, in the Mopar engine book, here's what it says:

"Mopar Performance's muscle car camshafts are exact reissues of the original Mopar muscle car cams, not regrinds. Kit contains camshaft, oil, tappets, and instructions."

"P4452783 High performance hydraulic camshaft and tappet package for 383 and 440 4-BBL. engines, 268-284-46 *, valve lift .450/.458, centerline 115*."

This means that camshaft came in Mopar engines from the factory, just like their reissue 340 cam. So, what cam is this, if the ones yall are talking about are the Magnum cams?