Top Street Performance 81102BK LS-Series Harmonic Balancer, SFI 18.1 Certified, 6.325-Inch OD

The Top Street Performance 81102BK harmonic balancer is designed for GM LS-Series engines requiring an internally balanced damper. With a 6.325-inch outside diameter and steel construction, this balancer helps control crankshaft torsional vibrations and supports reliable engine performance in demanding street and competition applications. Its SFI 18.1 certification makes it a suitable choice for vehicles and racing environments that require certified harmonic damping equipment.
The 81102BK features a durable black-painted finish that provides a clean appearance while helping protect the steel surface during installation and service. The internally balanced design is intended for compatible GM LS-Series crankshafts, helping maintain proper rotating assembly balance when matched with the correct engine configuration. Verify engine application and balance requirements before installation to ensure proper fit and operation.
Designed as a direct replacement-style performance component, this Top Street Performance harmonic balancer is supplied individually and is built for dependable service under demanding operating conditions. Use the correct installation procedure and recommended fasteners for the specific engine application. The Top Street Performance 81102BK combines certified construction, steel durability, and LS-Series compatibility in a practical harmonic control solution.

Features:

• Brand: Top Street Performance

• Part Number: 81102BK

• Application: GM LS-Series engines

• Outside Diameter: 6.325 inches

• Construction: Steel

• Certification: SFI 18.1

• Balance Type: Internal balance

• Finish: Black paint

• Quantity: Sold individually