<VV> heavy duty brakes?

[mhicks130 at cox.net]

So I was going to pick up a rebuilt master cylnider at NAPA and the guy wants to know if I have regular or heavy duty brakes.  Would heavy duty brakes shoe up as an option code on the body tag?  It's a '65 BTW.  I know I just put regular pads on but I don't know what it came with.  I had to replace one of the rear hard lines and it was a 3/16" line.  Thanks!!

mike