Hello, since no one else has responded, you're stuck with my reply for now. It is my opinion that driveshaft (propeller shaft ) length would be determined more by transmission (gearbox) type, than engine displacement A manual trans. driveshaft will differ from an automatic trans. version, in any given model year. look more for similarities in this area, when seeking a replacement shaft. hope this helps.
H bodies came with a variety of engines, 4, V6 and V8 along with several different transmissions. I do know there were several different length driveshafts (propellers as you call it) but I do not know the lengths or which ones interchange offhand. So, I would be very careful if you are buying one and are unsure of what you need.