Cylinder head, Valve cover, <a href="https://garage.wiki/bmw/engines/gasoline/straight-4/20-l/n20-b20-b/181-hp.html" title="BMW gasoline straight-4 2.0 L N20 B20 B 181 HP engine DIY maintenance and service manual">BMW gasoline straight-4 2.0 L N20 B20 B 181 HP</a>
by Roman Paulov