ATI Damper for Chevy BB MK IV Gen 5/6 454 502 7.074in Steel Ext Bal 3 Ring

ATI Harmonic Damper for Chevy Big-Block MK IV / Gen 5 & 6 Brand: ATI — Application: Chevy BB MK IV (Gen 5/6) 454 & 502 Upgrade crankshaft protection and engine smoothness with the ATI 7.074" steel harmonic damper . Designed for external balance big‑block Chevy engines (454, 502), this heavy-duty 3‑ring damper reduces torsional vibration, improves longevity, and supports high-performance builds. Key Features 7.074" diameter steel construction for durability and accurate damping External balance design compatible with BB Chevy MK IV / Gen 5 & 6 engines 3-ring rubber damping for superior vibration control Direct fit for 454 and 502 displacements—single-piece unit for easy installation Precision manufactured by ATI for performance and reliability This damper is ideal for street, strip, and high‑output applications where crank control and engine life are critical. Ensure proper engine balancing and bolt pattern compatibility before installation. Choose ATI for proven performance and protection.