PowerBond Harmonic Balancer - 8" - SB Chevy 400 - External Balance SPBXS3 number 1905 and number 1906

number 1905 and number 1906

Attractive finned aluminum housing helps dissipate heat

** It's the perfect marriage of simplicity and accuracy

This classic white shift ball from Hurst features solid high gloss

PowerBond Harmonic Balancer - 8" - SB Chevy 400 - External Balance SPBXS3 number 1905 and number 1906Most 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