4.505 in Piston Ring Set Explore our exclusive collection of auto accessories featuring high-quality products to enhance your vehicle's style, comfort, and functionality. We provide a one-stop shop for the perfect auto accessories for your vehicle. Features. Made of high-quality materials for maximum durability. Suitable for your vehicle and lifestyleSpecifications. Bore Size 4.505. Top Ring Thickness 1/16. Second Ring Thickness 1/16. Oil Ring Thickness 3/16. PlasmaMoly Material