Can anyone help in identifying this 727?

[Justasgood]

Picked up with a 1973 Charger. Allegedly from. 440 car.

 

[Under Pressure]

“I believe” from a 77-78 non HP 400
Other experts on here can confirm

 

[pnora]

4028412

 

[tubalcain]

4028412 - 400 cu in
4028424 - 440 cu in
Both 76-77.
As an interesting sidenote, I just opened the 440 model and found that the front pinion set had the early, (62-75), spline angle. The transmission showed no signs of having been worked on. I've had that core since 78. I believe that it came from the factory like that.

 

[Justasgood]

Thanks for the quick responses. Is it worth a rebuild?

 

[Lefty71]

Is it worth a rebuild?

Yes indeed.

 

[tubalcain]

The best way to answer that is, it's like a 10-day old easter egg, open it and smell it. Take the pan off and check for a telltale burned smell. Look for shiny specks, brownish oil, black charcoal looking sediment, all signs of problems. Pink oil with no junk is a positive sign. One caution about the pink oil is that the oil may have been changed recently. It is a common thing to change the oil when problems develop.