400 stroker or 440

Thanks ya'll for all the great information....I too, am considering a 400 for my dart.... i have a couple 383's that i was seriously considering installing, but am convinced now that i will stroke the 74 400 that a friend wants to trade... i was worried about the work involved when installing a BB in my 318 dart, but have really been liking what i see about the 400..... thanks for the info