Tru Power Engine Kit. 4-Cylinder Gas. 134 CID, 3-7/16 inch Standard Bore, Slotted Drive Pump. Engine Overhaul Kit contains sleeves, pistons, rings, pins & retainers, pin bushings, complete gasket set, intake & exhaust valves, springs, guides, valve keys, camshaft timing gear, oil pump kit, oil filter, fan belt, air cleaner hose, upper & lower radiator hoses, carburetor kit, spark plugs, points & condensor. For NAA Tractor (1953-1954).