master cylinder ?

i am trying to find a master cylinder rebuild kit for my 1954 chevy 210. local parts stores(oreillys) cant seem to find one, even thou they have shoes, wheel cylinders and hydraulic hoses, etc.....and ive tried to get them to cross reference different years...but its not worked so far.
so, does anyone know maybe a newer model car that used the same master cylinder? or a range of years that ths particular master cylinder was used? thanks

 

They are a unique MC unto the car. Most of us use something like the ECI conversion and update to a more modern dual mMC.

 

Rock Auto has 2 different kits and the complete M/cyl

I have had good luck with service and prices.

 

i was kind of wanting to stay local, but thanks for the info. looks like im buying this kit online

 

i like the eci stuff, but maybe speedway