ATI Damper 6.78in Alum 6/4 Grv 10% UD for LS1/LS2 F & V Body

ATI 6.78" Aluminum Damper for LS1/LS2 F & V Body Brand: ATI — engineered performance for high-output LS engines. This 6.78-inch aluminum damper is designed specifically for LS1 and LS2 swaps in F-body and V-body applications. Diameter: 6.78 inches — compact fit for tight engine bays. Material: Billet aluminum for reduced mass and reliable balance. Grooves: 6/4 grooved design to accept OEM-style belts and accessories. Underdrive: 10% underdrive (UD) — lowers accessory RPM to reduce parasitic loss and improve throttle response. A/C Compatibility: 10% UD configuration supports A/C systems. Harmonic Control: 3-ring viscous-style damping for improved crank harmonics and longevity. This damper is ideal for street and performance builds that require a compact, lightweight harmonic solution without sacrificing accessory operation. Precision balanced for LS rotating assemblies, it reduces vibration and helps protect engines under high load. Fits: LS1 and LS2 V8 engines in F-body and V-body platforms. Perfect for swaps and high-performance replacements.