There aren't any! I looked everywhere a year and a half ago when I was rebuilding my 350. Found some cast .040 over pistons but nothing forged. I even called Sealed Power and a couple other piston manufacturers.
Somewhere I have a copy of that article describing using the Mopar pistons in the 350.
I've got a set of 7 .040 over cast pistons if you're interested.
-=>Lee<=- Due to budget constraints the "light at the end of the tunnel" has been turned off!