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The ATI crankshaft damper is a 6.78-inch aluminum three-ring damper with a 6/4 groove and a 10% underdrive option, built for LS1, LS2, LS3 and LS6 engines covering 1997–2013 Y‑body applications. It balances reduced rotating mass with ringed harmonic control and supports underdrive accessory drive setups and specified air‑conditioning arrangements.
ATI Damper - 6.78in - AL - 6/4 Grv - 10 Per UD - LS1/2/3/6 - 97-13 Y Body - 10 Per UD A/C - 3 Ring
