PowerBond Harmonic Balancer - 6.4" - SB Ford 302W EFI - 50 oz. - 4-Bolt - External Balance MAC-VSC-RS Double Throw

Double Throw

Chevrolet: G20 Van 71 - 74 4

Standard Replacement

000 PSI holding power

A/C Compressor Bracket

PowerBond Harmonic Balancer - 6.4" - SB Ford 302W EFI - 50 oz. - 4-Bolt - External Balance MAC-VSC-RS Double ThrowMost standard harmonic balancers are assembled with inserted dampening rubber which won't handle the torque forces and higher revs the modern engines generate. This leads to spinning of the inertia ring resulting in loss of timing accuracy and eventual component separation. Often these balancers are made of relatively weak Grey cast iron which often cracks in the keyways and centre webbing. Even expensive all steel or alloy performance balancers from