Reciprocating combustion engine with a 2 or 4-valve cylinder head

The engine has a cylinder crank case (1), in which a piston, a piston rod and a crank shaft are integrated. An inlet duct with an inlet valve, an exhaust duct with an outlet valve and a fuel injection valve are provided in cylinder heads. The heads with two or four valves are screwed with the crank case such that a cylinder head gasket (7) with apertures is used for channels and openings for cylinder head screws (6) for both heads.