What is the torque specs for opel 140i head?

The torque specifications for the Opel 1400 (often referred to as the 140i) cylinder head typically require tightening in a specific sequence and to a specific torque value. Generally, the initial torque is around 30 Nm (22 lb-ft), followed by a second stage of about 60 Nm (44 lb-ft), and then an additional angle turn of 90 degrees. However, it's crucial to consult the specific service manual for your engine model, as variations may exist based on the year and specific engine configuration.