SKU: ATI916163-15
MPN: 916163-15
The ATI Performance Supercharger Pulley 8.597 Dia. 8-Groove is a precision crankshaft pulley engineered for GM GenV LT-series engine supercharger drive systems. This aluminum component, finished in black anodized coating, features an 8-rib serpentine belt interface and incorporates ATI's damper technology to manage harmonic vibrations during high-output engine operation. The pulley is supplied complete with all necessary hardware, ready for direct installation on compatible LT platforms.
The 8.597-inch diameter and 8-groove configuration work together to optimize belt tension and power transmission efficiency in supercharger applications. Unlike standard crankshaft pulleys, supercharger-specific designs account for the increased rotational load placed on the crank by forced induction systems. The integrated damper reduces stress concentration and vibration harmonics—critical factors when running elevated boost pressures. Aluminum construction keeps rotating mass minimal, reducing parasitic drag while the anodized finish provides corrosion resistance and extended component life in engine bay environments.
This pulley is purpose-built for builders and enthusiasts upgrading late-model LT engines with supercharger kits. It serves dual roles: driving the supercharger compressor while maintaining serpentine belt compatibility for alternator and accessory drives. Proper pulley selection is fundamental to supercharger system tuning—mismatched ratios can result in boost spike anomalies or insufficient compressor speed. ATI Performance's engineering ensures the 8.597-inch specification works within the intended boost envelope for factory-based and modified LT platforms alike.
Installation requires removal of the original crankshaft pulley and serpentine belt routing modification to match the new 8-groove configuration. Complete hardware inclusion streamlines the swap process. The 2.93 lb weight and compact dimensions integrate seamlessly into factory engine bay layouts without modifications to accessory brackets or belt routing systems on compatible LT applications.
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