big block and automatic trans

[Greg Curtis]

How many of you guys are using an automatic transmission with a big block 460 on the street. How is your acceleration and highway speeds with say a 3:08 rear end with 28" tires.

[bigmike]

I'm not using a slush-box, but the Shell Valley Factory car uses one behind a tweaked 460+++ ( I think it's like a 514 crate engine) They seem pretty happy with it.
BigMike

[Frank Coppola]

I have a straight 460 with a C-6 and 3:50 rear. Awesome off the line, and plenty of top end for the highway. I could go for a lower ratio, and get lower RPM on the highway, but I think I would kill myself if my car could go any faster. I'll settle for quicker not faster.

I use a B&M megashifter as well. That's the fun part.

[Jack21]

Check with Performance Automatics in Gaithersburg, MD. They build transmissions for just these kinds of applications. They also have better valving for light car/big engine combos. May want to drop rear down as low as 2.74 or use built AOD to keep cruise RPM down.