120
The torque specification, for the harmonic balancer on your 350 cubic inch engine, is 280 pounds per square inch. The torque specification may vary according to the manufacturer of the engine.
The harmonic balancer torque specifications are different in each type of engine. The general torque specification is between 120 pounds and 180 pounds.
You can tighten ANYTHING too tight. EVERY bolt and screw has a specific torque specification. Look up what the torque specs are for the balancer bolt on your engine and tighten it to the specification.
between 150-180. anywhere in that area is fine
60 ft-lbs
80 Ft-lbs
6cyl is 125nm
About 200 foot pounds.
75 lbs 75 lbs
The engine has a harmonic balancer on it, but if it is off, it is easy to re-install. Simply line up the key and tap it on most of the way and torque down the center bolt.
160 lbft This is important since the balancer is a "slip fit" not a "press fit" as many engines have. Failure to torque it suffiently will result in wobble and eventual balance failure.
70-90 LBS par Hanes repair manual