ATI Performance Products ATI918857 Super Damper Aluminum Groove Overdrive Engine Harmonic Balancer - 7.48 6 4 10% for LT1/LT4

The ATI Performance Products ATI918857 Super Damper is a high-performance harmonic balancer designed specifically for 2016+ LT1 Camaro, LT4 CTS-V, and 2017+ ZL1 applications. This precision-engineered damper features a 7.48-inch aluminum construction that provides superior harmonic vibration control while reducing rotating weight compared to stock components.

Key Features:

• 7.48-inch diameter lightweight aluminum construction for reduced rotating mass
• Dual serpentine belt groove configuration: 6-rib and 4-rib grooves
• 10% underdriven pulley ratio reduces parasitic accessory drag and frees up horsepower
• ATI's proven elastomer-style damper design effectively controls crankshaft harmonics
• Direct bolt-on replacement for LT1 and LT4 Gen V small block engines
• SFI 18.1 certified for competition use
• Compatible with supercharged applications (supercharger pulley sold separately)

This Super Damper is engineered to protect your high-performance engine from destructive torsional vibration while improving throttle response and overall engine efficiency. The 10% underdrive configuration allows accessories to spin slower, reducing power consumption and improving performance. Perfect for street performance, road racing, and drag racing applications on late-model GM LT-platform vehicles.

Application: 2016+ Chevrolet Camaro LT1, 2016+ Cadillac CTS-V LT4, 2017+ Chevrolet Camaro ZL1 LT4

Note: Supercharger pulley must be purchased separately for supercharged applications.