Yea, Ford makes 4 bolts from the factory, but they are very unnecesary for the BBF especially. A 2-bolt 429/460 can take 900+ HP with a 2-bolt and a nodular iron crank. The factory 4-bolt BBF's are hard to find because they were not consistant in what had a 4-bolt or what casting number had a 4-bolt. You have to pretty much know what casting number could have had a 4-bolt and then pull every oil pan on every block of that number until you trip and fall on a 4-bolt. After all that they really dont add much to the integrity of the engine. Maybe a main stud girdle does, but I dont believe a 4-bolt does in a Ford 385 series.