Professional Products PowerForce Lightweight Harmonic Balancer - 6.000 in OD - Black - Internal Balance - Small Block Chevy 53955HST 1992-1993 GMC K3500 Sierra CID

1992-1993 GMC K3500 Sierra CID 454 Naturally Aspirated GAS

1980-1981 Ford E-350 Econoline Club Wagon

1968-1969 Pontiac LeMans

Intake manifold will not fit 1962-64 Max Wedge heads

Cylinder head flow 291 cfm on the intake and 217 cfm on the exhaust at

Professional Products PowerForce Lightweight Harmonic Balancer - 6.000 in OD - Black - Internal Balance - Small Block Chevy 53955HST 1992-1993 GMC K3500 Sierra CIDProduct Description: Harmonic Balancer PowerForce Lightweight 6. 000 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,