good grief, a 439" SDSS bullet is hardly what the OP is talking about


If the 440 and 360 both make 500hp the 360 is going to do it at a higher rpm. That higher peak tq might require a deeper gear than the 440, might not. But the increased rpm range of the 360 is also going to allow it to stay in lower trans gears longer if the same rear gears are used, making better use of the available torque multiplication.

This concept in reverse is why many people find that stockish 440's don't really run any quicker with 4.10's than they did with 3.23's.