LS rockers on a Mopar?

It definitely brings up more than a few questions concerning potential improvements to the pushrod and rocker geometry. I’m also curious about the no name aluminum heads he found for a “too good to be true price” too.
I watched that video about an hour after he put it up. In it He says no name but think he meens part number.
They say TrickFlow on them if you watch the video. He also says bare head's so were low cost, and no numbers stamped. That's what I assumed.
So also assume the Average Joe would cost a pile to make them useable. And not the case for him, and nothing wrong with that.
So also guess what was used was lower cost Chevy vavles, springs, rockers , again nothing wrong with that if that's what ya have, and can make it work.
Same Machine Shop also made the plates for the rockers.
He does say Machinest is a Sponcer-Friend of his, and the Exhaust guy who is also his buddy sponcer.

My Machinist is a friend and cuts me a brake and does me favors. And one of my oldest and best friends is Transmission specialist. He won't take my money