correct ex mainfolds for my M code 69 440 dart?

Hi, Can anyone tell me the what are the correct casting numbers for my 1969 Hemi orange M code 440 darts exaust mainfolds?? I am trying to restore the car just like it came from the factory and i have had people tell me different numbers. I know the passenger side is the same as the 383 but the drivers side has a casting number that was only used on the 440. If anyone can tell me the correct casting numbers for the 440 That would be great! Then all I have to do is find them! I know that will be crazy hard to do! Thanks!!