Looking to increase the displacement of your 7.3 Powerstroke? These Mahle 224-3163WR.020 Pistons with Rings are just what you need. Sold as a set of 8, these pistons feature a .020" oversize for increased displacement. Additionally, the skirts are not coated, so you can be sure of their durability. Get this set and enjoy increased power and performance from your Powerstroke today!