Engine to transmission supports

Rani....just for the heck of it, next time you're under the car, measure from the very back edge of the block flange that the bellhousing bolts to....to the center of that hole the trans brace bolts to. See if it's 9" + or - a fraction of a fraction. That's what I measured on both a 318 and a 340 in my basement. I still believe the difference is between the 904 and 727......not the 318 and 360.