I have my m54 3.0 head dissembled all that’s left is to take out the bolts. Trying to follow the prescribed method I started in the corners. So far, with a 2 ft 3/8” torque wrench I’m not able get any to crack loose. (I did test crack a couple the other day #1 and the one next to it on the exhaustside, both seemed to retorque but concerning).

I bought a 1/2 to 3/8 adaptor to use with my 1/2 breaker bar but am concerned I’ll twist of a bolt head. Is there any advantage to putting Blaster or another penetrating oil on the bolts at this point so I don’t bust something?