Auto trans recommendation for 360 crate engine

DodgeLad said
You mean 3rd lockup on the A727? Helps, but it's no OD.
I was thinking of replacing the A727 with a 46RH on my old truck to get OD. But meh, the A727 is like new, it's here and it fits with no hassle, so I'm keeping it.

No. I mean that with the OD unpowered, the 46RH is essentially a 727.