I'm supposed to go look at a couple of 727's tomorrow. They both have part number PK2892093 and what looks like an L after the number. According to the Govier white book, they would be for a 383 or 440 in 68 or 69. One is date coded for 68 and one for 69. Does it matter if this number trans. was originally from a 383 or a 440? I was told once that 383 and 440 727's were internally a little different with the 440 being a little beefier. Is this true? If so, is there a way to tell without opening them up if they were from a 383 or a 440 originally?