Premium Piston Rings for 94-03 Ford 7.3L/445 V8 Turbo DI Diesel | Keystone Top Ring Stack 3.0 /2.0 / 3.5mm | Number of Cylinders: 8 | Bore Size at Standard in millimeters: 104.40 | Bore Size at Standard in inches: 4.110 | 2nd Ring Gap is .060-.075" | Keystone Top Exceptional Quality and Craftsmanship: LowPricedAutoParts by... $167.19 - $167.56 Compare