That's very interesting about the calibration of the clicker-type torque wrench. I had no idea they could be off by so much. My problem with the dial type is that I always seem to go past the mark so I like it when the clicker tells me to stop. Even so my machine shop guy advised me to torque the head bolts to 65 ft-lb instead of the Chiltons 60, and so far none of the head bolts have broken so if the wrench was low it came out about right. For low torque settings like the exhaust manifold and aluminum intake I really need that cllicker or I will keep going until something gives at those low settings.

Don Shillady
Retired Scientist/teen rodder