Magnum vs la timing chain cover

The oil pan itself is the main difference because LA pans have an extra step that LA gaskets fill. The timing cover side is just a corner on both styles, so an LA gasket on an LA pan sits nicely on an LA timing cover or on a Magnum timing cover with a small dab of silicone in the corners.
The photo I posted is a Magnum engine, Magnum timing cover, LA oil pan, with LA oil pan gasket.