2.6 L in One rev? Ahh! how I love this long debated subject. FWIW, I think Ed got this one right so I don't need to elaborate.
Tracy (back from a Blue Ridge run)
Monty, Glad to have you and you know you will always be welcome here. However, you are wrong and 'he' is right about the displacement of the 13B. It is 2.6L or 159.6 cubic inches to be more exact.
That is the volume of intake on one revolution of the e-shaft.
But I think you knew that, you were just trying to get his goat. ;-)