SKU: ATI917304 | UPC: 800157082535
ATI Damper 7.48in Aluminum 6 Groove LS1/2/3/6/L76 97-13 Corvette Y-Body SS G8 28T 8mm HTD 3 Ring
This ATI Super Damper is a high-performance crankshaft harmonic balancer for GM LS-series engines in 1997-2013 Corvette Y-body Chevrolet SS Pontiac G8 Trailblazer SS. It fits LS1 LS2 LS3 LS6 L76 models absorbs crankshaft vibrations controls harmonics and delivers precise belt drive for supercharged high-horsepower setups. Neutral balance design works with internally balanced LS cranks for direct replacement.
Key Features
- 7.48in Diameter: Matches OEM specs for bolt-on fit perfect accessory alignment and belt tension on LS engines.
- Aluminum Shell: 3600-series aluminum reduces weight cuts rotational mass maintains strength for street or track.
- 6-Groove Pulley: Handles 6-rib serpentine belts supports superchargers upgraded accessories under high loads.
- 28-Tooth 8mm HTD Timing Marks: Laser-etched for exact supercharger belt timing in ProCharger HTD kits.
- 3-Ring Design: Encapsulated steel inertia ring with dual outer rings dampens vibrations across full RPM range.
Product Notes
- SFI 18.1 certified for racing safety and competition use.
- Neutral balance for internally balanced LS cranks no extra balancing needed.
- Ships in protective packaging weighs 10.8 lbs box dimensions 9 x 9 x 9 inches.
Installation Notes
- Professional installation recommended.
- Torque crank bolt to 240 ft-lbs with ARP moly lube or 60 ft-lbs initial plus 90 degree turn.
- Includes heavy-duty crank bolt for stock or ATI crank snout compatibility.
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1997-2013 | Chevrolet | Corvette | LS1 LS2 LS3 LS6 L76 V8 Y-Body |
| 1998-2002 | Chevrolet | Camaro | LS1 V8 SS |
| 1998-2002 | Pontiac | Firebird | LS1 V8 |
| 2008-2009 | Pontiac | G8 | GT GXP 6.0L 6.2L |
| 2006-2009 | Chevrolet | Trailblazer SS | L76 6.0L V8 |
Why Choose ATI?
- Proven in NHRA Top Sportsman Pro Mod racing classes.
- Billet-machined components O-ring sealed for oil containment.
- Engineered in USA for LS engines with decades of development.
Frequently Asked Questions
-
Q: Will this damper fit my 2006 Corvette LS2 engine?
A: Yes fits all 1997-2013 LS1 LS2 LS3 LS6 L76 engines in Corvette Y-body with internal balance crank. -
Q: What materials are used in construction?
A: 3600-series aluminum shell steel center hub encapsulated steel inertia ring for durability vibration control. -
Q: What is the warranty and return policy?
A: ATI provides one-year warranty against defects contact manufacturer for claims no returns on used dampers.
Shipping & Handling
- Method: UPS Ground or FedEx Ground
- Availability: In stock - ships same or next business day
- Packaging: Securely boxed 9 x 9 x 9 inches
- Weight: 10.8 lbs
ATI
ATI Performance Products has been at the forefront of race-winning drivetrain engineering since the 1980s, with over a dozen U.S. patents backing a catalog built for serious competition. From drag racing's top professional classes down to weekend street/strip builds, ATI components are trusted when reliability and power transfer are non-negotiable.Popular UpgradesThe ATI Super Damper is the gold standard in harmonic balancer technology, reducing crankshaft torsional vibration to protect engine components under high-RPM loads. The Superglide transmission series and Treemaster Converters are proven choices for automatic-equipped performance builds, while the Compu-Flow Valve Bodies add precision shift control. Flexplates, adapter kits, and internal transmission components round out the catalog for builders needing complete drivetrain solutions.Are ATI Super Dampers street legal?Yes. ATI Super Dampers are SFI-certified and designed for both street and strip use. They are a direct repla...
View ATI Products
Crankshaft Dampers
Crankshaft dampers, also called harmonic balancers, are the weighted pulley assembly at the front of the crankshaft that absorbs and dissipates torsional vibration created by combustion pulses. A failed or deteriorating damper allows crankshaft harmonics to build up, accelerating bearing wear and potentially causing catastrophic crankshaft damage in high-RPM or high-output engines.Popular UpgradesPerformance underdrive harmonic dampers that reduce parasitic accessory drive load are popular on naturally aspirated racing engines where every horsepower counts. SFI-rated dampers meeting the Society of Fire Integrity 18.1 standard are required equipment at most sanctioned drag racing events and are recommended for any high-RPM performance build. Replacement OEM-spec dampers restore factory harmonic control on high-mileage street vehicles where the rubber bond in the original damper has failed or the outer ring has begun to walk forward on the hub.How do I know if my crankshaft damper is ...
View Crankshaft Dampers Products
Crankshafts & Components
The crankshaft and its supporting components form the structural and mechanical core of every reciprocating internal combustion engine. Upgrading the crankshaft assembly with forged steel cranks, precision bearings, dampers, and timing components builds an engine bottom end capable of handling the power and RPM demands of a serious performance build.Popular UpgradesForged 4340 crankshaft sets paired with matching connecting rods, ARP main studs, and performance main bearings are the standard specification for any V8 performance build targeting 500 or more horsepower. Billet crankshafts for maximum-effort race applications provide the highest strength-to-weight ratio available when a forged crank's fatigue limit is a concern. Timing components including double-roller timing chains, billet steel gears, and cam phasers should be upgraded alongside any crankshaft swap to maintain proper valve timing under the increased loads of a performance build.What crankshaft components should be re...
View Crankshafts & Components Products
Engine
This engine parts collection covers oil catch cans, thermostats, thermostat housings, radiator components, coolant accessories, engine covers, fuse box covers, cap covers, throttle bodies, supercharger pulleys, idler pulleys, tensioner pulleys, and engine bay dress-up parts for trucks, SUVs, muscle cars, boosted builds, high-horsepower street cars, and performance vehicles that need better reliability, cooling, airflow, oil control, and under-hood styling. The collection is particularly strong for Dodge Challenger, Charger, Durango, Jeep Grand Cherokee Trackhawk, and Ram TRX platforms running 6.2L Hellcat, 6.4L HEMI, and 5.7L HEMI engines, where oil catch can and cooling upgrades address known OEM weaknesses in the PCV and thermal management systems. Import performance platforms including GM LS-based builds, Chevrolet Camaro, and Corvette applications are also represented through Mishimoto, CSF, and ZPE GripTec product lines. Builders who invest in engine bay organization and reliab...
View Engine Products


