The patented ATI Super Damper standard harmonic balancers are the only crankshaft dampers designed exclusively for high performance engines. Inner and outer shells are available in aluminum or steel, and contain a steel inertia weight. The inertia weights have six (2-ring design) or eight (3-ring design) computer-machined grooves to retain the proper durometer O-rings (dyno tested for each application). Whether you race or just drive on the street, ATI harmonic balancers are the perfect choice.
Features
- Engine Balance:
- Internal
- Safety Rating:
- SFI 18.1
- Degree Markings:
- Yes
- Degree Marking Range:
- 360
- Outside Diameter (in.):
- 7.074 in.
- Keyway Quantity:
- One
- Material:
- Steel
- Construction:
- Elastomer
- Finish:
- Black zinc chromate
- Hardware Included:
- No
- Quantity:
- Sold individually.
- Notes:
- Features second 1/4 in. keyway and 3/16 in. keyway, with 1-piece hub and inner shell.
- Make:
- Chevrolet
- Years:
- 1966-1972
- Engine Family:
- Chevy big block Mark IV
- Engine Sizes:
- 6.5L/396-7.4L/454
- Crankshaft Pulley Bolt Hole Quantity:
- Three
