Cylinder head, Cylinder head screws, All <a href="https://garage.wiki/bmw/engines/gasoline/straight-6/25-l/m50-b25-256s1/" title="BMW gasoline straight-6 2.5 L M50 B25 (256S1) engine DIY maintenance and service manual">BMW gasoline straight-6 2.5 L M50 B25 (256S1)</a> engines, Aluminium engine block, First stage

by Roman Paulov