Cylinder head, Cylinder head screws, <a href="https://garage.wiki/opel/engines/gasoline/straight-4/16-l/a-16-let/177-hp-at-5500-rpm-230-nm-at-2200-rpm.html" title="Opel gasoline straight-4 1.6 L A 16 LET 177 HP at 5500 RPM, 230 N⋅m at 2200 RPM engine DIY maintenance and service manual">Opel gasoline straight-4 1.6 L A 16 LET 177 HP at 5500 RPM, 230 N⋅m at 2200 RPM</a>, First stage

by Roman Paulov