Tru Power Engine Kit. 4-Cylinder Perkins Diesel, 203 CID. 3.6" Standard Bore. .150" Sleeve Flange Thickness, Injectors Vertical in Head. Engine Overhaul Kit, less bearings. Contains sleeves & sleeve seals, pistons & rings, pins & retianers, pin bushings, complete gasket set, crankshaft seals, intake valves & seals, exhaust valves, valve retainers, springs, guides. For 356 Series Industrial, MF65 Series.