Professional Products PowerForce Plus SFI 18.1 Harmonic Balancer - 8.000 in OD - Black - Internal Balance - Big Block Chevy RST-012R-RS BMR's heavy-duty spherical bearings are

BMR's heavy-duty spherical bearings are designed to solidly link the spindle to the upper control arm

LED light on module comes on whenever retard is commanded

Head and Neck device

145-inch Wheelbase models only

Professional Products PowerForce Plus SFI 18.1 Harmonic Balancer - 8.000 in OD - Black - Internal Balance - Big Block Chevy RST-012R-RS BMR's heavy-duty spherical bearings areProduct Description: Harmonic Balancer PowerForce Plus 8. 000 in OD SFI 18. 1 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,