ATI Damper - 5.67in - Alum - 6/4 Grv - 25 Per UD - LS1/2/3/6 - 97-13 Y Body - 10 Per UD A/C - 3 Ring

This ATI crankshaft damper is built with a 5.67-inch aluminum construction, featuring a 6-rib and 4-rib groove design. It's specifically made for LS1, LS2, LS3, and LS6 engines, covering Y-body applications from 1997 to 2013. The damper includes 25% Underdrive (UD) capability and 10% UD for A/C, along with a 3-ring setup to manage torsional vibrations effectively.

The aluminum construction helps reduce rotational mass compared to heavier steel dampers, which can contribute to improved engine response. Its multi-groove pulley system allows for accessory drive configuration, accommodating up to 10% underdrive for the air conditioning system while maintaining 25% underdrive for other accessories. This setup is designed to handle the demands of performance LS engines, offering a well-built solution for managing crankshaft harmonics.

When installing this damper, ensure you have the correct tools for proper seating and alignment. It's a critical component for the longevity and performance of your LS engine, especially when modifications are involved.