Professional Products PowerForce harmonic dampers are extremely durable—and economically priced. They're built with a bonding process which adheres the elastomer to the I.D. of the inertia ring and the O.D. of the hub, utilizing a strong adhesive along with an improved elastomer to create a much stronger bond. PowerForce dampers also feature white, easy-to-read timing marks against a painted black background. Each unit is accurately balanced and closely machined for the correct fit. Dozens of models are available for applications from 1955 and up. Choose the size, material, finish, keyways, and other options recommended for your vehicle.

Small Block Chrysler Harmonic Damper 7.25. This damper is supplied as a neutral balance damper and comes with three bolt-in counterweights. This allows this one part number to fit four different small block Chrysler engines. The damper without any weight fits internally balanced 1967 and later 318 V8's standard and Magnum, and all internally balanced 273 and 340 engines with forged cranks. One weight is for 340 externally balanced 1972.