The references you're seeing are regarding using a 198 rods with a 225 crank, with 2.2 four-banger pistons. Referred to as a "Long Rod" engine, a "Non-stroker Stroker". Displacement remains about the same, but this moves the pivot point in the piston and allows the use of lighter, (more) modern pistons and rings. I know this because I built one of these engines 15+ years ago. Still have it in a retired Swinger in my garage.