Basic 318 info needed

The oil pickup will NOT work if you are changing from a rear sump to front sump pan. I am a bit confused about what you actually have.

On a side note, I actually converted two pans from 360--318 LOL sometime in the late 70's. Cut out the rear "half moon" with a makeshift jig on both pans, bolted them to an old 273 block to control warpage, and gas welded them into the opposite pans.