NEW SOUTHWEST SPEED RACING SLEEK FLAT LID ALUMINUM 1 1/8" BORE TANDEM MASTER CYLINDER, 1/2" & 9/16" PORTS ON EACH SIDE Brand New Southwest Speed Master Cylinder, Aluminum, 1/2 And 9/16, Both, 1 1/8" Diameter, FL (SWS Part # 300-8034) 1 1/8" Bore Tandem Master Cylinder Without The Push Rod | * Lightweight Aluminum Master | * 1" Stainless Steel Sleeved Bore Slotted 2 Bolt Mounting Flange Accepts 3/8" And 10MM Bolts, And Allows For Mounting To 3 1/8", 3 1/4", And 3 3/8" Center-To-Center Patterns | * This Makes It A Simple Bolt-On To Many OE Mounts Including The Popular Chrysler, Corvette, GM, And Ford Mustang Bolt Patterns Height From Center Line To The Top Most Point On The Retaining Bar Is 3 1/2" | * Measures 8 3/4" From Mount Surface To Front Of Cylinder Body | * Features 1/2" And 9/16" Ports On Each Side Includes Plugs For The Side That Isn't Used | * Features A Deep Piston Design And Includes A Piston Adapter That Allows It To Be Used For Manual And Power Applications