Street Series 6.4" Harmonic Balancer (50 oz. in.) PB1084-ST Roll Over Valves These vacuum dual diaphragm units

These vacuum dual diaphragm units enhance braking ability

All ididit adaptors will fit most ididit columns as well as most 1969 or newer GM passenger car columns and are secured in place with a single nut

8L Series 1

313 in (135 mm) Air Filter Shape: Panel Filter Material: Cotton Gauze

Street Series 6.4" Harmonic Balancer (50 oz. in.) PB1084-ST Roll Over Valves These vacuum dual diaphragm unitsStreet Series 6. 4" Harmonic Balancer (50 oz. in.)Suit Ford 302W EFI 4 Bolt (Counter Weight Ring) PB1084 ST 1084 ST Street Performance All Powerbond Street series Balancers are manufactured from high strength SG iron which has far greater resistance to fatigue and cracking then grey iron. To save on cost some competitor balancers use regular "Grey" cast iron which has limited strength and is prone to cracking under extreme conditions, fatigue or even