BBC 7.074 SFI Harmonic Damper Internal Bal.

The BBC 7.074 SFI Harmonic Damper Internal Balancer is designed for big-block Chevrolet engine builders and performance enthusiasts who require reliability under extreme rotating assembly stress. This internally balanced damper is engineered to absorb crankshaft harmonics, which are destructive vibrations that occur at high RPM, while ensuring precise engine balance.

The damper features a 7.074-inch diameter and is SFI-certified for sanctioned racing, meeting the stringent safety and performance standards set by major motorsports organizations. Its internal balancing design eliminates the need for external weights, resulting in a cleaner engine bay and improved weight distribution, which reduces parasitic losses.

Builders of 454, 502, and other big-block Chevy powerplants will appreciate the fit and finish that ATI Performance brings to rotating assembly components. The damper's internal balance capability makes it particularly suitable for stroker motors, enhancing performance across the entire power band.