I wonder if that's similar to the 5.3 liter V8 engine thats in my 2007 Trailblazer and in some Chevy pickups. When there is no large demand for power, the computer automatically shuts off four cyinders (randomly rotating them), them brings them on line again when the demand is there.
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It's a pretty seamless operation and the full power is over 300 hp, but it takes a hell of a lot of sensors, computer work, and wiring to make it work. I certainly wouldn't want to try to put one of them in a CJ or Wrangler.

1977 CJ-7, fiberglass body, AMC 360 w/ headers, DUI ignition, Edelbrock intake and Holley 4150 carb, TF999, Dana 300, 4.56 gears lockers, York air comp, 4" susp lift, 2" body lift, BFG 35" M-T tires, Megashifter, AGR pump & box, REP8000 winch.