I think 401357 is officially discontinued, I bought one a dealer had in OK. Also Fel Pro p/n 1658 Performance V/C gasket apparently is discontinued, and the intake gaskets p/n 1356 were hard to find. Fel Pro still shows the 1658's on their site, but I couldn't find a vendor that actually had a set..
I need the v/c gaskets if anyone has a spare set.