Professional Products PowerForce Harmonic Balancer - 6.750 in OD - Black - Internal Balance - Small Block Chevy 558-499 The company that can deliver

The company that can deliver the purest charge of nitrous to the discharge point will make the most power with a given jet size

NOTE: The aluminum crimp sleeve no longer comes with this hose end (it is available separately)

Oil film stability under high temperature

1 1/4" Large Spacing Coil-Over Spring Rubber Blue HardLongacre is an established brand name in the racing industry and is recognized for dedication to quality

Automatically shuts off power to the fuel pump in the event of a vehicle roll over

Professional Products PowerForce Harmonic Balancer - 6.750 in OD - Black - Internal Balance - Small Block Chevy 558-499 The company that can deliverProduct Description: Harmonic Balancer PowerForce 6. 750 in OD Steel Black Internal Balance Small 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