LS1/2/3/6 Tru Trac Pulley System Black

The LS1/2/3/6 Tru Trac Pulley System in Black from Billet Specialties is a precision-engineered accessory drive upgrade designed for serious LS engine builders and performance enthusiasts. This system replaces factory serpentine pulley setups with a lightweight, track-proven alternative that reduces parasitic losses and improves overall engine efficiency.

The Tru Trac pulley system optimizes belt wrap geometry and reduces drag on the crankshaft, translating to measurable horsepower gains and improved throttle response. The black billet aluminum construction provides superior heat dissipation compared to cast iron factory pulleys while maintaining absolute dimensional accuracy for consistent belt tension and alignment.

This system accommodates standard serpentine belts and integrates seamlessly with stock or aftermarket water pumps, alternators, and power steering pumps, eliminating the need for adapter brackets or modifications to existing engine bay components. Installation is straightforward for anyone familiar with basic engine work, as the pulley system bolts directly to LS1, LS2, LS3, and LS6 engines without clearance issues in standard or modified engine bays.