Hello,
for the 2wd engine with standard head bolts and std head gasket the 1st stage is 20-25Nm, 2nd stage 45-50Nm and third 170-180 degrees.
for the 4wd with standard head bolts and gasket the 1st stage is 45-50Nm, 2nd 180 +/- 10 degrees and 3rd stage 110Nm. Between the stages i have to wait 30min?

If i use a set of ARP main stud kit and cometic head gasket how these values change?
I would like to know also the combination std bolts and cometic gasket.

For you which is the best combination for 400-450bhp engine with max boost 1.8 - 1.9 bar of boost?

thanks