Oldsmobile 455 6.500" External SFI-Rated Damper Harmonic Balancer Nothing lasts forever

Nothing lasts forever

These kits help to eliminate any noise or unnecessary grinding that may cause your starter to prematurely wear

Constructed from a composite material with a steel core

and use low-resistance terminals for maximum conductivity

This feature is sometimes called an air gap design

Oldsmobile 455 6.500" External SFI-Rated Damper Harmonic Balancer Nothing lasts foreverSpeedmaster harmonic balancers are crafted from high quality steel and feature a tuned elastomer for optimal engine performance. They include a strong bonding process, easy to read timing marks, and an advanced design to absorb engine vibrations, extending the life of the crankshaft and bearings for enhanced power and torque.