It has a 1 9/16" port and 1/2" port. This will work with most after market brake boosters used on 1955-1974chevrolet cars AND ALSO MANY OTHER APPLICATIONS. The ports are drilled on the left side.
For Chevy A/F/X GM AC Delco Style Chrome 11" Single Diaphragm Brake Booster
For GM Chevy Chrome Saginaw Style Power Steering Pump w/ Single Groove Pulley
Chrome 7" Brake Booster GM Style Single Diaphragm Universal Chevy Camaro Hot Rod
Holley 12-881, One Chrome Aluminum Fuel Pressure Regulator By-Pass Style 6Psi
A/C Compressor w/Clutch for Sanden 508 Style 2-Groove V-Belt Chrome Aluminum New
AC Compressor with Clutch & 2-Groove for Sanden 508 Style V-Belt Chrome Aluminum
