The 7/8" or 15/16" bore Tandem Aluminum Master Cylinders from Wilwood are available in three finishes: plain, ball burnished, and black e-coat.
Designed primarily for manual applications, these master cylinders include a pushrod.
They are intended for mount flanges ranging from 3.22” to 3.40”, which are common measurements for most domestic cars and trucks from the mid 1960s to present, and they offer fluid outlet ports on both sides of the bore.
The stroke is set at 1.10” with a volume ratio of 2:1 between the primary and secondary chambers.
Each master cylinder is machined from high-pressure die castings and weighs only 3lbs, providing a 75% weight savings over most cast iron factory type master cylinders.
A combination proportioning replacement valve kit is also available, which includes brackets and stainless lines specifically for use with this master cylinder, see part number 260-13190, or 220-13189 for the retrofit kit.