I have an early small block Chevrolet with a crankshaft that does not have a damper bolt. Can I install a Fluidampr or Streetdampr without the bolt?

We do not recommend the installation of Fluidampr or Streetdampr without a damper bolt. Personal and/or property damage could result. The crank needs to be properly drilled and tapped. This procedure requires the crank to be removed from the engine. The proper torque for the bolt is 70 ft.-lbs.