The rods I'm using in my stroker engines fit a Nissan 2.4L 4 cylinder. They are available in an H beam type, rated for 1K horsepower or more, depending on the rod bolts used. That's far above any power a stovebolt could ever make, no matter how it's modified. Smaller rod journals, lightweight aluminum pistons, and a few other sneaky tricks should let the guys who want to outrun their friends with a stock appearing rig with a 258 cubic inch "216" wear a big grin, though!