Bore Size

[hulkamania]

One common misconception is that a larger bore size will generate more fluid pressure. The fact remains that a larger bore master cylinder will create more displacement; however fluid pressure will increase with a smaller bore size, as a larger bore size will require more force to achieve the same pressure output.

For anyone designing their own brake system, we recommend attempting to emulate what the factory design was. Particularly, using oem type designs and equipment. From the 1940's through the 1970's, the majority of vehicles produced by Ford, GM, and Chrysler used 1" to 1 1/8" bore master cylinders on average passenger cars.

 

[ellis8500]

Always us a MC designed for the types of brakes being used. the MC's for 4 drums or 2 drums + 2 discs or 4 discs differ in internal design. If you plan on 4 discs you can't go wrong if you use the 70's Corvette manual 4 disc MC.