Sorry, I jumped the gun posting. I researched it, and it won't fit at all. I saw though that the /6 904 has a higher stall? Does anyone know the converter lockup rpm?
I believe the torque converters are interchangeable as far as 904's go (just not between lockup and non-lockup), so install whatever stall speed you like.
Let me correct myself by saying that was for an average slant. May be 2k-2.5k behind a v8, like Dan says, no real way of telling. Unless it's in the car and you do the 'ol stomp test.