Modern automobile engine block assembly is mainly composed of cylinder block, cylinder head, cylinder cover, cylinder gasket, main bearing cover and oil pan, etc.The engine block group is the support of the engine, and the assembly matrix of the crank connecting rod mechanism, the valve mechanism and the main parts of the engine system. The cylinder head is used to seal the top of the cylinder and forms the combustion chamber together with the piston top and cylinder wall . In addition, the cylinder head and the water channel, as well as oil channel and oil pan are respectively cooling system and lubrication system components.
