Professional Products PowerForce Harmonic Balancer - 8.000 in OD - Black - Internal Balance - Big Block Chevy 4399 Unlike some aftermarket heads

Unlike some aftermarket heads

Buick: Skylark 66 - 66 6

All QA1'springs come with a lifetime guarantee to remain within 2% of their original free height and rate

The XStack™ 10 is a stack of 10 laminated Tearoffs that are 2 mil thick each

Professional Products PowerForce Harmonic Balancer - 8.000 in OD - Black - Internal Balance - Big Block Chevy 4399 Unlike some aftermarket headsProduct Description: Harmonic Balancer PowerForce 8. 000 in OD Steel Black Internal Balance Big Block Chevy Sold Individually The year was 1972, as newly imported automotive brands from Europe and Japan were gaining popularity; the founders of Professional Products entered the racing industry as part of Brock Racing Enterprises. The performance and styling parts company was an off shoot of the Datsun (Nissan) Racing Team. Prior to this, Brock and