1955-1957 Chevrolet 8" dual diaphragm chrome brake booster and master cylinder with built in proportioning valve. 
We welcome any questions. This is a great way to clean up the engine compartment!! 

Master features:
  • 1 1/8" bore master cylinder 
  • Lightweight aluminum construction
  •  black  finish semi gloss 
  • built in adjustable proportioning valve
  • Can be used with power brakes
  • Compatible with disc/disc, disc/drum, and drum/drum applications
  • 3/16" inverted flare ports  
  • built in fully adjustable proportioning valve 
  • directions included 
Kit includes:
  • 1- 8 inch chrome dual diaphragm power brake booster 
  • 1- black master cylinder with built in pro valve
  • 1 -chrome brake booster mounting bracket
  • 1- clevis rod to attach to original brake pedal