HERE IS A  BRAND NEW MASTER CYLINDER  FOR YOUR CHEVY WITH FRONT POWER DISC BRAKES !!!!!!!! 

 THIS HAS A 1 1/8" BORE, 1/2"X20thread FRONT OUTLET  AND 9/16X18thread REAR OUTLET .

 THIS FITS;

*****  1967 1968 1969 1970 CHEVELLE EL CAMINO MONTE CARLO WITH POWER DISC FRONT BRAKES 

*****  1967 1968 1969 CAMARO WITH POWER FRONT DISC BRAKES 

***** 1969 NOVA WITH POWER FRONT DISK BRAKES