Black Outpower brake conversion for your 1962-74 Mopar, Dodge, Plymouth, Chrysler utilizes8″ dual black power booster and black POL or Wilwood master cylinder and Black Out adjustable proportioning valve. Improves stopping distances and driver performance tremendously. Made in the USA.These components are a must when upgrading to disc brakes and come completely assembled, ready to install. Convertfrom Manual Brakes to Power Brakes on A, B & E Body cars, modifications required on factory power brake cars. Works with small block and most big block and Hemi engines. Will not fitA-Body cars with a big block or Hemi. Kit is compatible withdrum brakes, 2 and 4 wheel disc.