I’ve long wondered about this. I understand the smaller combustion chamber of the 848 increases compression, and in theory, should net a performance gain.
HOWEVER, I’d love to hear from someone that noted a “seat of the pants” performance increase by going from a larger chamber 235 head to an 848 head. In my simple brain, it’s enough CCs that the difference ought to be to be material.
On the other hand, we are dealing with a pretty low performing engine that has many other limitations.
