727 vs. 904???

I have a 68 Dart, /6 with a 904 transmission. Removing that for a 318, wanted to go with a 360, but the 318 will have to do.

The 318 will have a purple shaft cam, (nothing way out there, but it will not be stock) The 318 will have a four barrel.

The rear is currently 7.25, but will be going to 8.25 with a posi-trac rear with 3.55 gears and street tires. Dart will be used for street driving and one or two times a year down the strip for fun!

(I know the 904 that is behind the /6 will not work, this is a different transmission.) (Do not think it matters, but it will have a set of 74 Dart front disc brakes and I plan on lowering the car 1" all the way around.)

The question is, I have both a 727 and 904 small block transmissions, both are in good shape, which one to use, and why????


Thanks in advance for your thoughts.

Sam