C6Matt

I am going to convert my 64 to front disk. I am also converting to a dual resivoir master at the same time. Reading threads on this forum, I have found the following to be true

1) you can run a dual master manual setup with no clearance issues
2) you can run a single master with a power booster with no clearance
issues
3) for a disk/drum setup a 69 camaro master is the way to go
4) if you run a dual master and booster, it will hit the hood bracing

Will a camaro master fit with a power booster? (and not cutting my stock 64 hood) I would love to add power brakes, but not if I need to cut the hood. Anyone have pictures of their setups, ideas to work around the stock hood? I've read some people "shim" the booster down, is that shims on the upper mounts? any pics?

66BlkBB

Is the 64 SB hood any different than the 65/66/67??? Other than the reliefs that housed the grille pattern in the 63's.

Since you are not making the car stock anyway, why not convert to full disc's????? Then you could use the 67 master cylinder and booster, couldn't you???? This would seem simpler to me. JMO

C6Matt

the hood subframe is diffrent, the later cars have a relief for the master to fit. 63-64 do not. The rear disk is much more involved trhan the front (trailing arm changes), and the car is just a cruiser that I want a little more safety in. 4 wheel disk, maybe someday.

66BlkBB

Thanks, I learned something today. Did not know of the relief in the under hood area on the later units.

TheSaint

You can buy this fiberglass piece from ZIP and do a cut out and glass in this piece or shim the top of the brake booster

toddalin

I don't know about that.

I think that most people (like myself) just use a Corvette M/C and add 10# residual and proportioning valves.

C6Matt

anyone with pics of their setup?

Mark_Milner

The drum brakes are great brakes and are maligned on here due to issues unrelated to the brakes. They have problems if you drive them once every 6 months from rust on the drums and shoes and then drag. But let Corvette calipers sit for 6 months and they leak.

if you really set up the drums, and drive them, you have no issues and the only issues that drums had were this:

1. Heavy
2. fade more than disk (if you aren't racing or in the mountains, I doubt you ever seen this)
3. more prone to water problems when driving in deep water (what C2 owner drives his Corvette in deep water?)

99.9% of you will never have those.

But if you want the disk brakes so badly, do it right. Do all four corners.


Otherwise, buy a Camaro. Or a Mustang.

32361ARTHUR

I have 4 wheel disc brakes on my 63. No hood clearance issues. I can take pictures if you need them. I'm leaving right now to go check out different mufflers for my vette. I should be back in a few hours.

tcsracing1

please share!

offset issues?

32361ARTHUR

Here is a picture of my master cylinder. My car came with disc brakes all the way around when I got it and I don't know what parts they used. I think they used everything off a 67 donor car but in reality I'm not sure. I bought the master cylinder at NAPA as my old one was bad and I believe I told them it was for a 67 vette. The booster is a nine inch one and I had to modify my valve cover so as not to hit it when I put a new 383 in the car. I had no hood clearance issues with the brake cylinder. My car is a 63, I hope this can help.

32361ARTHUR

i forgot to tell you i have ralley wheels which of course fit with no issues

toddalin

Ahh, no.

The drum set-up is lighter than the disk setup. It also has no drag whereas the disks always drag.

In 1965 those who drag raced knew this and were those (along with the cheapies) who opted for the drum brake option.

32361ARTHUR

My disc brakes don't drag. It has 4 wheel power disc brakes. My friend has a stock 63 roadster with stock brakes, I've driven it and it stops fine but no comparison to mine.

toddalin

Sure they do. The pads simply ride (drag) along on the disk. Sure you "depressurize" them, but there is no spring to retract them away from the disk as there is on a drum set-up.

C6Matt

I dont consider 4 wheel "doing it right" its not a race car. Its funny you mention it, I do have a 67 camaro (13" disk up front, 12" rear) and 66 mustang. (4 wheel power drum) the camaro is fast, the mustang is a top down cruiser, the vette is inbetween, so I averaged the breaking of the two..

32361ARTHUR

All disc brakes touch sometimes, maybe all the time if the rotor is perfect but they will sit at a distance of the widest spot on the rotor until you touch the pedal. Drag implies that there is some sort of pressure on them which there shouldn't be if everything is right.

C6Matt

For the sake of argument say I just want a dual resivoir with 4 wheel drum...what fits under my hood?

toddalin

Maybe splitting hairs, but you can't touch without some pressure.

toddalin

If you wanted to keep it "all in the family" you could use a Corvette dual M/C and put 10# residual valves on the ports. You may even get by without a proportioning valve because the drums are sized to account for proportioning.

IIRC, there may even be a few companies who make drum M/Cs out of the Corvette-style M/C for use in other makes/models.

Otherwise you are looking at another GM product, or the aftermarket such as Wilwood.