Tru Power Engine Kit. 6-Cylinder Perkins Diesel, 354 CID. 3.875 inch Standard Bore. Head Gasket Replaces MF/Perkins 36812544 and 36812522, Valve Cover Uses 6 Bolts, 2-Piece Rope-Type Rear Seal. Engine Overhaul Kit. Contains sleeves & sleeve seals, pistons & rings, pins & retainers, pin bushings, complete gasket set, crankshaft seals, intake valves & seals, exhaust valves, valve retainers, springs, guides, .020 inch rod and main bearings. For MF1100 Series.