Engine Overhaul Head Gasket Kit for N63 550i 650i 750i 750Li X5 X6 4.4L V8 This head gasket kit is designed for engine overhaul applications on 4.4L V8 engines with N63 designation.It includes all necessary components required for a complete cylinder head gasket replacement.The kit contains the head gasket, exhaust manifold gaskets, intake manifold gaskets, valve cover gaskets, spark plug tube seals, and associated hardware such as bolts and seals.Components are engineered to meet specifications for proper fit and function.This set supports comprehensive engine repair and is suitable for use during major maintenance or performance rebuilds.