Professional Products 6.80 in OD Harmonic Balancer - Silver - Internal Balance - Pontiac V8 550-1634-6 An aspherical mirror is added

An aspherical mirror is added for a wider field of view

Weight springs made with stress-relieved music wire to assure blueprinted advance curve (USA)

full-bodied sound

Rubber Coated Cork

Stick-On / Screw-On

Professional Products 6.80 in OD Harmonic Balancer - Silver - Internal Balance - Pontiac V8 550-1634-6 An aspherical mirror is addedProduct Description: Harmonic Balancer 6. 80 in OD Iron Silver Paint Internal Balance Pontiac V8 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 members of his