The bore master cylinders are designed primarily for manual applications and include a pushrod. The 1″ bore can be used in manual and power assisted applications and does not come with a pushrod. The 1-1/8″ bore is designed for use primarily with power brake applications, either from vacuum assist or hydraulic assist systems. They are designed for mount flanges from 3.22″ to 3.40″, common measurements for most domestic cars and trucks from the mid 1960s to present, and offer fluid outlet ports on both sides of the bore.

Specifications

• Finish: Black E-coat
• Material: Aluminum
• Bore Size: 0.12″
• Weight: 3 lbs