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Definately antisieze: never use Loctite for exhaust manifold or header bolts. I think the torque spec is 16 or 18 ft. lbs. In practice, it would be very difficult if not impossible to get a torque wrench on every bolt. So, you really have to tighten them by educated feel. If you use a 3/8" drive ratchet, you really have to be carefull how hard you pull as you really do not want to strip out the threads in the head or twist off the bolt head. The safe way is to use a 1/4" drive ratchet: if you tighten so much that the smaller handle is starting to hurt your hands, you are tight enough. :cheers: