well, called ' head ' people at 4.34pm Wednesday 11th, and they referred me back to mech. The report is yet to arrive.
Phoned mech at 4.40pm same day.
Mechanic said that they ( head people ) are sending head back tomorrow with new parts. Mech will ' mill / machine ' head , fit new parts " seats/ insert " etc and replace it on Friday. maybe not get vehicle back that day......
Any issue after that will be referred straight back to head supplier as they are insisting there is nothing wrong with head except for 5thou bow. Head supplier are aware that if vehicle goes back to them down the track it will be accompanied by claims for loss of income, inconvenience, hire costs, LEGAL costs and more....