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The ATI crankshaft damper is a 6.78-inch aluminum three-ring unit with a 6/4 groove and a 10% underdrive option, targeted at LS1 and LS2 engines in F‑ and V‑body installations. It provides reduced inertia and controlled damping while accommodating optional underdrive accessory drive setups and air‑conditioning provisions when specified.
ATI Damper - 6.78in - Alum - 6/4 Grv - 10 Percent UD - LS1/LS2 - F & V Body - 10 Per UD A/C - 3 Ring
