TheSaint

I need a brake line fitting that fit a 3/16" front to rear brake line and a dual master cylinder for a 1967 Corvette

On the picture you can see the "blue" fitting that fit the dual master cylinder that fit a 1/4" brake line but does not fit the 3/16" brake line

On the picture to the right you can see that the fitting on the 3/16" brake line does not fit the master cylinder

The fitting on the brake line to the right sits on the 3/16" brake line i plan to use but i need a brake line fitting that fit both the 3/16" brake line and the dual master cylinder for a 1967 Corvette

Will the 3/8-24 inverted flare, 3/16" brake line fit the brake line and dual master cylinder?

Or what size brake line fitting do i order when using 3/16" brake line and dual master cylinder for a 1967 Corvette?

Is copper nickel brake lines okay to use for making brake lines(i know plain copper is not)

Powershift

Are you aware that the front and rear brake lines on a 1967 go thru a distribution block that contains a brake failure switch. The brake lines do not connect directly to the master cylinder.

Checkout the AIM for your 1967 brake system for the specifics. Without going outside to measure my lines, I cannot advise on the exact sizes. However, most supply houses have various adapters to go between line sizes if all else fails.

Larry

TheSaint

I am aware of that. But it is just for a warning light


I should have said that i am converting a 64 coupe from drums to disc brakes and changing all brake lines as well
I will run both the front to rear and front brake lines direct to the master cylinder

The front to rear brake line is placed on top on the frame on 1963-65 Corvettes so that is why i want to use a 3/16" brake line since it fit proper compared to the 1/4" front to rear brake line i have

I have an adapter i can use between the front to rear brake line and master cylinder but i think i rather change the to fitting on the 3/16" brake line and replace it with one that fits the master cylinder and 3/16" brake line

DucatiDon

summit and/or jegs have them . you just need a reducer.
I may have even seen them in Corvette America catalogs...

Steve439

This might be it:

http://www.jegs.com/i/JEGS+Performan...63084/10002/-1

mark6669

You can get those fittings from inlinetube.com part#s TN-04 (1/2x20T for 3/16 tube) TN-07 (9/16x18T for 3/16 tube) 75 cents steel, 3.50 in SS each.
Mark

TheSaint

Thanks for the help and reply`s

I noticed last evening that the left front port and left rear port have different size diameter and threads
I actually thought they where the same size

So a Corvette parts dealer have shipped me some fitting in 9/16"-20 nut for 3/16" brake line

I will have to cut the brake line put on the new nut and then flare the brake line. That way i do not have to use any adapter

Bit i did some searching on the net and the left front port is 1/2"-20 INV and the left rear port is 9/16"-18 INV

I think the drawing i have put text to is right about the sizes of the ports

I read that the 1967 to 1976 Corvette used the same size ports but if that is correct i do not know

It looks just like the one i have for my car

Steve439

That's interesting.
I never paid attention to the one fitting being different, I guess 'cause all four use the same wrench size.
Although I must've noticed when I bench bled...

TheSaint

I just had a look at Inlinetube.com and they really have a lot of parts and the prices for the parts is really cheap

Looks like they have brake line fittings in all sizes for all kind dimension of brake line tubes

larrywalk

I added a '67 master cylinder on my '65 - I did not use the distribution block, but attached the two lines directly to the master cylinder with adapters I bought at the local auto parts store. The brakes have been great without the dist block.

Although the adapter fittings shown above look good, one had best practice making double inverted flares before one commits to the above approach.

TCracingCA

For my 1967 set up, I ran a 1/4 inch line to the rear! I also have the proportioning valve (Kelsey Hayes) and the brake distribution warning block (standard in all cars and sometimes called a proportioning valve!). You could get by with the 3/16 to the rear and use adapters, but I would bet that the rears will be quick to react, so in addition I would say to run a modern proportioning valve to curb or cure that! I do believe the 1965/66 cars did run the 3/16 line to the back, and the Master Cylinder design for those was different. I don't have 1965/66 so I would have to defer to the guys that do! My set up is 1967.

Also the generic flaring units available at auto parts stores, Sears, etc are good for fuel lines and such, but I feel you need a higher level professional double flaring unit especially if you step up to stainless to do brake lines. You are dealing with alot higher pressures and thus not something to be done by the amateurs at home! And those cheap flaring units are not the type of flare that you need!

I hope this helps. When I get home or most likely this weekend, I can pull my notes on what I did with mine over 25 years ago!

TCracingCA

Ps but if you aren't going to drive the crap out of the brakes ro apply them hard, then the 3/16 line would probably not be a concern or have an effect.

ZEN357

Have you tried Jegs or Summit Racing?

davekp78

I got all the adapters I needed at O'Reilly's.

JohnZ

You're responding to a post that's four years old.