Wilwood 260-16520-BK Wilwood Corvette C2 Compact Tandem Master Cylinder - 7/8in Bore BlackWilwood 260 16520 BK Wilwood Corvette C2 Compact Tandem Master Cylinder 7 8in Bore Black Machined from high pressure die cast aluminum, the Compact Tandem Master Cylinder weighs just 3. 25 lbs., more than 50% less than the cast iron factory tandem unit. Despite the compact size, it has a full 1. 10 stroke and the fluid volume needed for high performance multi piston calipers. Finish options include gloss black e coat, or a media burnished polished