Compatible with Ford Tractor(s) 2N (1/42-12/47), 8N (1/48-12/52), 9N (1/39-12/41) Compatible with Ford Engine(s) 120 (gas) Bore: 3.1875" Stroke: 3.750" Flathead 3 ring piston .090" cylinder liner thickness Kit includes: Pistons, Piston Ring Set, Liners, Connecting Rod Bushings, and Gasket set with Crank Seals Kit does not include connecting rod or main bearings