Mopar 413/426 Max Wedge block casting number confusion

The head gasket has some passages that are clogged with rust, that does not happen in a few miles
Also the gasket is only available NOS, research shows it was the correct gasket, by number for the 426
Unless someone pulled it down and bored it 60 over which I doubt, it would be a 426. The inside of the motor is very clean, and you can barely catch a fingernail on the cylinder ridge. When I pull it completely, the date codes on the bearings should help clarify as well as a Sonic check, 413 to 426 is .0060 over to make a 426, the walls I'm my block will be thin if it is a bored 413
The factory would have stamped it on the dizzy pad indicating it was over bore. The factory would sometimes over bore .010, I’ve never seen a factory .060 bore. But it’s not impossible.

What’s more likely is that early in its life, it was rebuilt with factory Mopar gaskets.
Either way, it’s still not a max wedge block. Period.