My statement is that 727s don't just blow up because of some kind of "sheer mass" issue... your own post stated that's what YOUR trans expert said..... That would make him a dumbass as far as I am concerned.. NOW, with that said, smaller and lighter transmissions ARE used in racing applications, but its for a slight ET gain, NOT durability.....but we aint talkin about race cars here, were talkin about the worth of a stocker/low hp trans...Now as far as why the factory would use a 727 behind a slant, I dunno.... a 904 is plenty durable for that.....