A question for experienced mechanics
I know someone who has a newer model of the Dodge Ram with a Hemi V8. It has a special gas-saving feature which turns off 4 of the cylinders when it is at highway speeds. I was wondering if this was a practical idea to do to an old 350 small block. I know that you could just unplug the spark plugs to 4 cylinders. Of course, you would have to do something to release the pressure also. (I was thinking of removing the entire spark plug.) I am not very experienced in auto mechanics so I was wondering if anyone here could figure this out. PS : This option of shutting down cylinders was also available in older Cadillacs I beleive it was called the 4-6-8, which shut down either 2 or 4 cylinders. This engine however, was known for it's problems, which is why I was wondering about doing this.