Cylinder head, Cylinder head screws, <a href="https://garage.wiki/opel/engines/gasoline/straight-4/20-l/x-20-xev/134-hp-at-5600-rpm-185-nm-at-4000-rpm.html" title="Opel gasoline straight-4 2.0 L X 20 XEV 134 HP at 5600 RPM, 185 N⋅m at 4000 RPM engine DIY maintenance and service manual">Opel gasoline straight-4 2.0 L X 20 XEV 134 HP at 5600 RPM, 185 N⋅m at 4000 RPM</a>, First stage

by Roman Paulov