ATI Super Damper 6.78in Aluminum 10% Underdrive with HTD Drive — Fits 1997-2013 LS Engines

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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About ATI

ATI engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full ATI lineup with fast shipping and expert fitment support — order with confidence.

Advanced Harmonic Dampening with Integrated HTD Drive

The ATI 6.78in Aluminum Super Damper is the ultimate solution for LS1, LS2, LS3, LS6, and L76 engine builders looking for both harmonic stability and accessory drive versatility. This specific model features a 10% underdrive ratio to optimize accessory speeds and includes a rear-mounted 28-tooth 8mm HTD drive, making it perfect for custom supercharger or dry-sump oiling system setups.

Technical Highlights

  • Diameter: 6.78 inches for consistent performance.
  • Material: Precision-machined aluminum for weight reduction.
  • Drive System: Includes 28T 8mm HTD drive for high-torque applications.
  • Underdrive: 10% reduction to minimize parasitic loss.
  • Compatibility: Fits 1997-2013 LS-based platforms.

Engineered for the rigors of competitive racing, this 3-ring damper provides exceptional vibration dampening that protects your crankshaft from the destructive forces of high-RPM operation. The inclusion of the HTD drive allows for seamless integration of high-performance accessories without the need for additional pulleys or complex mounting solutions. By reducing the rotational load on your engine, this underdrive damper helps you extract every bit of available power while keeping your engine internals safe from harmonic fatigue. If you are serious about your engine build and require a reliable, multi-functional damper, this ATI unit is the industry standard. Upgrade your engine's reliability today with premium parts from GGCRACING.

Product Details

Product Description
Part Numbers
Sizing & Fit

About ATI

ATI engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full ATI lineup with fast shipping and expert fitment support — order with confidence.

Advanced Harmonic Dampening with Integrated HTD Drive

The ATI 6.78in Aluminum Super Damper is the ultimate solution for LS1, LS2, LS3, LS6, and L76 engine builders looking for both harmonic stability and accessory drive versatility. This specific model features a 10% underdrive ratio to optimize accessory speeds and includes a rear-mounted 28-tooth 8mm HTD drive, making it perfect for custom supercharger or dry-sump oiling system setups.

Technical Highlights

  • Diameter: 6.78 inches for consistent performance.
  • Material: Precision-machined aluminum for weight reduction.
  • Drive System: Includes 28T 8mm HTD drive for high-torque applications.
  • Underdrive: 10% reduction to minimize parasitic loss.
  • Compatibility: Fits 1997-2013 LS-based platforms.

Engineered for the rigors of competitive racing, this 3-ring damper provides exceptional vibration dampening that protects your crankshaft from the destructive forces of high-RPM operation. The inclusion of the HTD drive allows for seamless integration of high-performance accessories without the need for additional pulleys or complex mounting solutions. By reducing the rotational load on your engine, this underdrive damper helps you extract every bit of available power while keeping your engine internals safe from harmonic fatigue. If you are serious about your engine build and require a reliable, multi-functional damper, this ATI unit is the industry standard. Upgrade your engine's reliability today with premium parts from GGCRACING.

Product Details

Product Description

About ATI

ATI engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full ATI lineup with fast shipping and expert fitment support — order with confidence.

Advanced Harmonic Dampening with Integrated HTD Drive

The ATI 6.78in Aluminum Super Damper is the ultimate solution for LS1, LS2, LS3, LS6, and L76 engine builders looking for both harmonic stability and accessory drive versatility. This specific model features a 10% underdrive ratio to optimize accessory speeds and includes a rear-mounted 28-tooth 8mm HTD drive, making it perfect for custom supercharger or dry-sump oiling system setups.

Technical Highlights

  • Diameter: 6.78 inches for consistent performance.
  • Material: Precision-machined aluminum for weight reduction.
  • Drive System: Includes 28T 8mm HTD drive for high-torque applications.
  • Underdrive: 10% reduction to minimize parasitic loss.
  • Compatibility: Fits 1997-2013 LS-based platforms.

Engineered for the rigors of competitive racing, this 3-ring damper provides exceptional vibration dampening that protects your crankshaft from the destructive forces of high-RPM operation. The inclusion of the HTD drive allows for seamless integration of high-performance accessories without the need for additional pulleys or complex mounting solutions. By reducing the rotational load on your engine, this underdrive damper helps you extract every bit of available power while keeping your engine internals safe from harmonic fatigue. If you are serious about your engine build and require a reliable, multi-functional damper, this ATI unit is the industry standard. Upgrade your engine's reliability today with premium parts from GGCRACING.

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