ATI Damper - 6.78in - Alum - 6 Grv - 10 Percent UD - LS1/LS2 F/V Body - No A/C - Alum Hub - 3 Ring

This ATI crankshaft damper measures 6.78 inches in diameter and features an aluminum hub with a 3-ring design. It's specifically made for LS1, LS2, and F/V Body applications that do not use air conditioning. The damper includes six grooves for accessory belts and is designed with a 10 percent underdrive pulley ratio, which can help reduce accessory drag and potentially free up a bit of engine power.

The construction uses a well-built aluminum hub, which is lighter than steel and helps reduce rotational mass at the crankshaft. The 3-ring design is a notable feature that helps to dampen torsional vibrations more effectively than a single-ring setup. This improved harmonic control is crucial for protecting your engine's crankshaft from damaging stress, especially in performance applications or when rebuilding the engine's top end. The damper is balanced for specific engine combinations, ensuring smooth operation and longevity.

When installing this damper, it's important to follow the manufacturer's instructions carefully, as proper alignment and securing the hub are critical for its function. This damper is a solid option for LS engine builds where reliability and effective vibration management are key priorities. It's designed to fit right onto the LS1/LS2 F/V Body platform without requiring modifications for non-A/C setups.