PowerBond Harmonic Balancer - 7.100" OD - Cast Iron - Natural - Internal Balance - Mopar RB-Series Powermaster Motorsports Copper wire rings to essentially

Copper wire rings to essentially eliminate head brinelling and bending

A proven winner when offset intakes are necessary for more pushrod clearance

Bert / Brinn / Powerglide / TH350 / Saginaw / Muncie Transmissions

1972-1972 Buick Sportwagon

PowerBond Harmonic Balancer - 7.100" OD - Cast Iron - Natural - Internal Balance - Mopar RB-Series Powermaster Motorsports Copper wire rings to essentiallyProduct Description: Harmonic Balancer 7. 100 in OD Cast Iron Black Paint Internal Balance Mopar RB Series Sold Individually PowerBond produces steel harmonic balancers that are designed to outperform conventional harmonic balancers without the weight penalty of many competitive balancers.