Cylinder head, Cylinder head screws, <a href="https://garage.wiki/opel/engines/gasoline/straight-4/20-l/z-20-let/189-hp.html" title="Opel gasoline straight-4 2.0 L Z 20 LET 189 HP engine DIY maintenance and service manual">Opel gasoline straight-4 2.0 L Z 20 LET 189 HP</a>, First stage

by Roman Paulov