A big block Chevy makes enough torque to twist the crankshaft with every firing pulse, and that torsional vibration wears bearings and throws off timing. This Fluidampr viscous damper controls that vibration across the entire RPM range with no tuning or rebuilds needed.

Fluidampr 630112 Harmonic Balancer Features:

• Fits Big Block Chevy engines
• 6.375 in. outside diameter
• 6 lbs total weight, 4.2 lbs rotating weight
• Viscous silicone design controls torsional vibration across the entire RPM range
• Helps reduce wear on critical engine parts and the risk of crankshaft failure
• No maintenance required