Bicycle Mechanics - Old ('93) Shimano 600 Brakes worn down - what to do?

The pads are worn down on the bike I'm fixing up to sell. They are Shimano 600. Where can I find replacement pads or if necessary shoes + pads. Can I replace these shoes with modern Shimano shoes?

Thanks,

Mendel

Kool Stop, which are arguably the best brake-pads going in their "salmon" color, makes pads to fit just about any type/model brakes.

http://www.koolstop.com/brakes/index.php

But I don't see the one that they are saying would be compatible with what I have.

I just noticed this one on Lickbike (http://www.lickbike.com/productpage.asp?PART_NUM_SUB='1403-00'). I'm still wondering if modern pads/shoes would work?

I just use the pads made for V-brakes. Works fine.

Yes, modern shoes will work with perhaps a little alteration to the calipers. I recently put some Kool Stop salmon Dura brakes shoes into a pair of old Shimano Exage brakes (from the late '80s). I had to grind out the slot on the brake arms just tad wider (hardly anything really, in fact, some of them very nearly fit). I used a 1/4" drill bit and just ran it along the sides of the slot. The issue is that older brakes were designed for a threaded bolt to fasten the shoe but the newer brakes/shoes have the threaded post as part of the shoe and the fastener is a cylindrical nut that must be inserted into the slot in the brake arm.

Those Shimano 6400 brake shoes will likely work w/o any alterations. I'd go with those since you're selling the bike.

I think I saw OEM Shimano 600 brake shoes online earlier today at Excel. excelsports.com