Odd casting numbers

You got screwed.

They covered the 5 to look like a 0=7O and 360 the 6 was ground away at the bottom left and some jb weld or something was used to close it in to make it look like a jacked up 4. Just look at the other 4 at the beginning of the casting. And the front is probably restamped over. Should be 340P

Wow.
Go back to whoever you bought it from and ghost drive it right into their dining room around supper time...