Mr D.

Morning All

My 65 project is coming along and I'm at the firewall buildup stage to get the body ready for installation back on the chassis.This is a factory Power Brake car.

I knew when I pulled the PB Booster and Master Cylinder that both were in sad shape and I thought I might be able to rebuild the MC and replace the booster. Both have been overcome with 49 years of neglect and cannot be saved (rust). I got a doublehand full of rust out of the MC and the piston is frozen in place and will not move.

So a replacement MC is $800 and I just can't see that at this time given everything that still needs $$$ attention.

The brake line set I have already installed on the chassis is a 65 Steel Brake LIne Set W/PB (3/16").

What later model master cylinder can I use on a stock 65 booster and will the current stock brake lines I have connect? Seems I remember reading on here somewhere that the line unions on my 65 car are smaller than the late model master cylinder??????

Thanks
Dennis

65GGvert

http://forums.corvetteforum.com/c1-a...rake-help.html

Mr D.

I read the above link

That thread didn't really say one way or the other if the stock 65 PB lines would work with a 67 Corvette MC. I will give Corvette Brakes a ring today and see what they say on this subject.

TheSaint

I you use a proportinal valve i suppose you can get new brake lines that goes from the valve to the master cylinder

If you run both front and rear brake line direct to the master cylinder the front port of a reproduction master cylinder have 1/2"-20 INV and the rear port have 9/16"-18 INV

You can use adapters that fit both the master cylinder and brake lines

You can also cut the brake lines and put on new fittings that fit the master cylinder but then you will have to flare the brake lines

Mr D.

Just talked to Corvette Stainless Steel Brakes. I can use their 1967 Corvette Booster & Master Cylinder Combo ($252) and tell them the size of the unions on my lines and they will provide adapters ($20) to make all this work.