Proflow’s oval-shaped, dual bowl master cylinders are made out of aluminium with 3 3/8” centre-to-centre mounting holes, 9/16” & 1/2” ports on the left side and can be paired with our proportioning valve kits for Disc/Drum & Disc/Disc applications. The lid is a screw-top style with hex screws. These master cylinders are sold individually, or in a kit that includes a proportioning valve. You’ll find the parts you need to get the most out of your factory brakes.

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Proflow Master Cylinder, GM Universal, Cast Iron, Natural, 1.125in. Bore, Dual Bowl, Ports both sides ,Each

Proflow Master Cylinder, GM Universal, Cast Iron, Natural, 1.125in. Bore, Dual Bowl, Ports both sides ,Each

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Proflow Master Cylinder, Ford Falcon/Mustang, Cast Iron, Black, 1.000 in. Bore, Dual Bowl, Disc/Drum, Each

Proflow Master Cylinder, Ford Falcon/Mustang, Cast Iron, Black, 1.000 in. Bore, Dual Bowl, Disc/Drum, Each

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Proflow Master Cylinder, Universal GM, Flat Top Aluminium, Polished, 1.00 in. Bore, Dual Bowl, Ports Both side, Each

Proflow Master Cylinder, Universal GM, Flat Top Aluminium, Polished, 1.00 in. Bore, Dual Bowl, Ports Both side, Each

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Proflow Master Cylinder, Flat Top Aluminium, Black, 1.125 in. Bore, Dual Bowl, Ports Both side, Each

Proflow Master Cylinder, Flat Top Aluminium, Black, 1.125 in. Bore, Dual Bowl, Ports Both side, Each

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Proflow Master Cylinder Reservoir, Remote or Direct Mount, 130mm Height, 80mm Dia, Billet Aluminium, Black

Proflow Master Cylinder Reservoir, Remote or Direct Mount, 130mm Height, 80mm Dia, Billet Aluminium, Black

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