Crank Hub - Steel - LS1 F-Body

The ATI Performance Crank Hub in steel is a purpose-built harmonic balancer hub engineered for GM LS-series engines, including LS1 F-Body applications. This component manages engine vibration at the crankshaft, which is essential for maintaining driveline stability and reducing stress on internal engine components during high-rpm operation. The black oxide steel construction provides corrosion resistance while maintaining the structural integrity required for forced-induction and high-horsepower builds.

Weighing 3.3 pounds, this hub is precision-engineered to OEM tolerances for LS1 engines found in Camaro, Firebird, and Trans Am F-Body platforms. The black oxide finish resists surface corrosion while maintaining proper thermal characteristics at the crankshaft. ATI's harmonic balancer design accounts for the torsional harmonics specific to LS displacement, helping minimize vibration transfer through the accessory drive system and protecting downstream components like alternators and power steering pumps from premature wear.

This hub is ideal for engine builders, restoration specialists, and F-Body enthusiasts maintaining or upgrading their LS1 powerplant. Whether replacing OEM components during a rebuild or optimizing vibration control in a modified engine, the ATI steel hub provides the precision fit and balanced construction necessary for reliable operation. It's particularly valuable in forced-induction applications where harmonic balance becomes more critical to crankshaft longevity.

SKU 916031 is the industry standard reference for this particular hub specification, ensuring compatibility verification and proper fitment to LS1 crankshaft geometry.