Dumbest question ever asked!

I have it in my mind that the reference to a Liter size of engine came simultaneous to fuel injection. Meaning, a carbureted engine would be called a 360. Where the same (basic) engine modernized with fuel injection is then referred to as a 5.9L. Hence, an LA 360 and a 5.9L Magnum. FWIW.

And I am the King of dumb questions!