Wilwood's High Volume Master Cylinders are made from high pressure die-cast bodies, feature 8.2oz of reservoir volume and 1,43" piston stroke.These master cylinders are designed with high pressure, high grade aluminium die-cast bodies and steel components. They each feature a single outlet and are available in various bore sizes.Wilwood master cylinders have the highest fluid capacity of any integral reservoir design. They have a total capacity of 8.2 ounces, at least 26% more volume than other brands. The 1-7/16" of piston travel offers extra margin when used with large piston calipers. Heavy duty internal springs provide fast retraction. The moisture is kept out thanks to formed steel lids with bellow type gaskets.Vertical flange with 2.25" mounting hole centres. 1.4" stroke. 7/16" inlet, 3/8" outlet.Wilwood master cylinders use common dimensions for flange or side mounting and 1/8-27 NPT outlet port.