"These dampers are 6.75""in diameter and approximately 1-1/8 think.These are believed to be the only affordable dampers available in this sizefor externally balanced engines such as the 383 and 400 small block Chevy.Like all our Chevy dampers they have 60°of timing marks”

Look at this list of competitive advantages over any other harmonic damper:

Price - Yes, there are less expensive street and SFI specification damper, but not at this quality level, nor can they match the other features that our damper price range.

Application – Our damper provide more applications for a wider range of engines than any other harmonic damper in our price range.

Universality – We are able to fit more applications with fewer part numbers than any other damper line. That’s because our damper more universal, allowing one damper to fit a wide range of engines, we fit engines that no one else does.

Quality – Despite our extremely attractive prices, the quality of our damper is equal to, or in most cases, exceeds that of any other harmonic damper. You won’t find any damper that is more accurately balanced or more closely machined for the correct fit than our harmonic dampers.

Bonded Construction – All of our dampers feature a bonding process which adheres the elastomer to the I.D. of the inertia ring and O.D. of the hub. We have perfected a new process that utilizes a stronger adhesive along with an improved elastomer that creates a much stronger bond. Our current design is practically indestructible.