It is hard for me to measure with the engine in the car. Maybe someone can get more exact measurements.
The rear of the sump is angled. About 10" at the bottom, and roughly 9.6" at the height of the steering linkage.
The front is very hard to measure in the car; roughly 4" from the front of the sump at the top, more at bottom of sump.

This is in my Cuda. It was so long ago I don't remember the brand I purchased. But I did add a swinging door to help (a little) with deceleration and oil moving forward.