Tru Power Engine Kit. 4-Cylinder Continental Gas. 3-3/8 inch Standard Bore. Engine Overhaul Kit, less bearings. Contains sleeves & sleeve seals, pistons & rings, pins & retainers, pin bushings, complete gasket set, crankshaft seals, intake valves & seals, exhaust valves, valve retainers, springs, guides. For 202 Series, 204 Series, F40 Series, MF135 Series, MF35 Series, MF50 Series, MH50 Series, TO35 Series.