ATI Shell Assy - 7.092 - AL - 10 Grv - Ford 5 Percent OD - Chevy 6 Bolt - 4 Ring

This is the ATI Shell Assy, part number 917144. It's a 7.092-inch aluminum crankshaft damper designed for specific Ford and Chevy engine setups. Specifically, it's made for Ford applications with a 5 percent overdrive pulley and Chevy engines using a 6-bolt crankshaft configuration. The damper features 10 degrees of programmed timing retard and a 4-ring design.

Crankshaft dampers are crucial for absorbing torsional vibrations that occur during the engine's combustion cycle. Without a properly functioning damper, these vibrations can lead to premature wear on your crankshaft and other engine components. This ATI damper is well-built with an aluminum shell, offering a balance of strength and reduced weight compared to steel alternatives. The 10-degree timing retard feature is a notable design element for tuning purposes, and the 4-ring configuration is specific to certain performance applications.

When installing this damper, ensure you have the correct tools and refer to the manufacturer's instructions for proper fitment and timing settings. This part is intended for specific performance builds where precise engine timing and vibration control are important.