Internally lubricated parts limited to bearings, cam followers, camshaft and cam bearings, connecting rods, connecting rod bearings, constant velocity valve, crankshaft, hydraulic lifters, intake and exhaust valves and valve guides, main thrust washers, oil pan, oil cooler and housing, oil pump housing and gears, oil pump pick up screen and tube, oil pump pressure relief springs and valves, pistons, piston rings, piston oil cooling jets, pushrods, rocker arms, rocker arm shafts, timing chain and gears, timing chain tensioners, timing gear cover, valve keepers (locks), valve retainers, valve springs, valve cover, and wrist pins. The following related components are covered: exhaust manifold, flywheel housing, intake manifold, thermostat housing, and vibration dampener. The engine block, cylinder liners, and cylinder heads are covered only if damaged by a covered component.