Which oil pan gasket to put a Magnum PAN on a 360LA?

69fury said

So the magnum pan and magnum gasket wont care that it's an LA timing cover?

I was pretty sure i read when using an LA timing cover in a magnum swap, the magnum pan gasket didn't like it and an LA was needed to be cut in.

-rick

Click to expand...

Nope. The only reason to cut in a LA seal is so it will seal the LA pan.
The LA pan has two "dents" or "recesses" in the front seal area (red arrows):

It is these recesses that require the LA front seal to be cut into the Magnum gasket (or use a ton of sealer there with a Magnum gasket, or just use an LA gasket/seal set), NOT the timing cover that makes a difference.
If you're using a Magnum pan, you don't have these recesses to deal with. So just use the Magnum gasket and move on.