The Wilwood Tandem Aluminum Master Cylinder, 1-1/8 inch bore with black e-coat, is tailored for power-assist brake systems and offers a 1.10" stroke and 2:1 chamber volume ratio. It suits common flange mounts (3.22"–3.40") found on many domestic cars and trucks dating from the mid-1960s onward and includes dual outlet ports to accommodate different brake line routing needs.
Wilwood High Volume Tandem Master Cylinder - 1 1/8in Bore Black