Norton Commando Cylinder Head Tightening Order and Torque 27 May 20267 July 2018 by Grant Tiller norton commando head torque | Norton Commando Head Torque and Tightening Sequence Guide | Norton Commando Head Torque wiring diagrams cover the correct tightening sequence, torque values, and stud specs for 750 and 850 Commando cylinder heads.Read more