In comparison here is the 2023 mopar section. All B and RB pistons are 1.5/1.5/3.0mm
That 1.320 is a great CH for the low deck ... to me anyway ... you can use it with multiple strokes all the way up to 4.25 with just a rod change. That's a great street piston , would be nice if they made it as a flat top to get a little more squeeze ...
