The booster mounts with a 4-bolt pattern. The 4 bolts are in a perfect square and are 3 3/8" apart (center to center). 1955 1956 1957 Chevy Car. This master cylinder will work with any drum/drum, disc/drum, or disc/disc setup.
BB Chevy Chrome 12pt Intake Manifold Bolt 16pc Kit 3/8"-16 x 1 1/4" BBC #9835
Chrome Big Block Chevy 3/8" Hex Head Intake Manifold Bolt Kit BBC 396 454
For 1958-64 Chevy Impala 8" Chrome Power Brake Booster Conversion Kit Disc Drum
For 1958-64 Chevy Impala 8" Chrome Power Brake Booster Conversion Kit Disc/Drum
1958 - 1960 Chevy chrome power brake booster master combo 8" dual diaphragm pv4c
1968-74 X Body Chevy Nova Chrome 8'' Power Brake Booster Master Cylinder kit
