Cylinder head, Cylinder head screws, <a href="https://garage.wiki/bmw/engines/gasoline/straight-6/20-l/m52-b20-206s4/148-hp.html" title="BMW gasoline straight-6 2.0 L M52 B20 (206S4) 148 HP engine DIY maintenance and service manual">BMW gasoline straight-6 2.0 L M52 B20 (206S4) 148 HP</a>, Aluminium engine block, First stage

by Roman Paulov