Adam - have you found any results for your head bolt tesion. I know this is a bit late but here they are for a 6.07tca
If any bolts exceed 166.5mm they must be replaced
Install bolts & apply successive torques of 30Nm - 60Nm - 100Nm - 90 degrees - 90 degrees again
bolt sequence
13 9 5 1 3 7 11
14 10 6 2 4 8 12
I have the entire service manual from the importers who used to be in Brisbane if you require a copy
Roz