Sanity check re engine swap options/planning

727 is a heavy-duty transmission, and it takes a little more power to turn it then it does the 904. Therefore, it makes sense in heavier cars or cars with bigger more powerful engines. Short of that, because it is a desirable transmission you would most likely be money ahead to sell it to somebody who could really use it and build you a 904 with money left over to add to other parts on your project. I'm expecting my build to put out around 420 or so, and still went with a 904 simply because of how light the car is.