My only argument here is that it can be done either way.......just like Chrysler did. I'd prefer blocking the gallies off with plugs on the LA and maybe drilling a small hole through the plug and plate for timing chain oiling. You could do the same with the Magnum. Just block the gallies off with plugs and use the LA plate and drill the hole in one of the plugs and a corresponding hole in the plate. In my mind, that's better oil control then the huge space in the plate that Chrysler made. I'd much prefer to divert more oil elsewhere in the engine like the crank for instance. You're missing the boat thinking I'm arguing against leaving it alone. I'm not. I'm simply saying you can do it another way. There's enough evidence in this thread already that shows the engines came both with and without the plugs......at least for the LA. I've pulled original engines myself and found plugs there. There's always more than one way to do things.