Harmonic Damper SFI SBM Int Balance

The PRO-RACE PERFORMANCE PRODUCTS Harmonic Damper SFI SBM Int Balance (Part Number 24277) is a precision crankshaft damping component engineered for small-block Mopar engine applications. This 7.30-inch outside diameter harmonic balancer features internal balance weight design and is constructed from iron with a natural finish, meeting SFI Foundation safety standards for high-performance use.

Harmonic dampers work by absorbing torsional vibrations that occur along the crankshaft during engine operation. The internal balance design integrates counterweight mass directly within the damper assembly, reducing the overall weight footprint while maintaining dampening effectiveness—a critical consideration for street performance and racing applications where engine speed and load vary significantly. The 7.30-inch diameter and iron construction provide the thermal stability and damping characteristics required for sustained high-RPM operation without premature wear or harmonic amplitude issues.

This damper suits engine builders and restorers working with small-block Mopar platforms who need SFI-compliant components for street performance, bracket racing, or period-correct restorations. The internal balance configuration is essential when working with balanced crankshaft assemblies and complementary internal engine work. Proper harmonic damper selection prevents crankshaft fatigue failure and ensures reliable power transmission across varying throttle conditions.

PRO-RACE PERFORMANCE PRODUCTS positions this component within the small-block Mopar specialty market, where compatibility between damper balance design and engine machine work is non-negotiable. Verify internal balance specification against your crankshaft assembly before installation to ensure correct weight distribution and eliminate vibration-related driveline issues.