What MC setup did you end up using? I need new hard lines and MC for the C5 brakes I added to my 65, after searching on the forums for hours it seems there are 100's of different setups that can be used;) I am looking for a setup that will be nice to my wallet and something I can bolt right in without modifying much, if any. Thanks all!

Same here, I'm gettin ready to do the same brake setup to my 67 and would like to change my current master cylinder and booster. Have old rusted 11 inch booster on now with power drums, but would like something smaller with a polished MC. Large booster is very crowded on big block valve covers.

there's numerous variations of the old style Corvette master cylinder that can be had from just about any restoration/brake supplier that are blingy if that's to your liking... if a std style looking master is ok, just check your local reputable part house. they probably have it in stock or can get it for you same/next day, new or rebuilt.

either a disc/disc or disc/drum master, depending on what you have on the rear.


hope i helped,

JR

there's numerous variations of the old style Corvette master cylinder that can be had from just about any restoration/brake supplier that are blingy if that's to your liking... if a std style looking master is ok, just check your local reputable part house. they probably have it in stock or can get it for you same/next day, new or rebuilt.

either a disc/disc or disc/drum master, depending on what you have on the rear.


hope i helped,

JR

Thanks Shifty, I have found threads regarding that 67-76 I think it is master, it's most likely the one I will go with. This thread was really to see if anyone had found a MC that would work with the factory pre-bent lines.

one thing to consider, i believe the Vette master plumbs front port to front, rear to rear where on a std master it's reversed...

view pages 39 & 40 of PDF (actual pages are 37 & 38 of catalog)
http://www.mpbrakes.com/uploads/content/2006%20catalog.pdf

one thing to consider, i believe the Vette master plumbs front port to front, rear to rear where on a std master it's reversed...

view pages 39 & 40 of PDF (actual pages are 37 & 38 of catalog)
http://www.mpbrakes.com/uploads/content/2006%20catalog.pdf
I was bleeding the rear brakes on my 70 chevelle 4 wheel drum and the rear resevoir of master was taking the fluid?I thought that front was front and rear was rear usually?:confused:

it's very possible, i believe that some were front/rear and some were rear/front... i might be wrong though. i'm not trying to post incorrect info, just going off memory (which fails at times) i see that master cylinder is front/front though according to the PDF.

I used the MC from a '71 Corvette manual. It has a 1" bore and works well with my C6 front brakes and LS1 rear disk. Use the NAPA site and it does a nice job of telling you the bore diameter of the MC you are looking at.

Are you running power brakes or manual?

For power brakes, the 67-76 vette manual master cylinder (1" bore, with deep pushrod hole) should bolt right up and fit with your pre-bent lines and factory-style booster (at least, it does on my '69 Camaro...)

For manual brakes, you're gonna need something with a smaller bore than 1" I think.... Haven't found much concrete info on what would work here though. I think Baer, etc. uses some Ford-sourced master cylinder with a 7/8" bore (?)

I recently purchased a drum to disc kit for the front of my 67, (not installed yet) and was planning on the master cyl/booster from NAPA. Is there a reason to avoid these?

Are you running power brakes or manual?

For power brakes, the 67-76 vette manual master cylinder (1" bore, with deep pushrod hole) should bolt right up and fit with your pre-bent lines and factory-style booster (at least, it does on my '69 Camaro...)

For manual brakes, you're gonna need something with a smaller bore than 1" I think.... Haven't found much concrete info on what would work here though. I think Baer, etc. uses some Ford-sourced master cylinder with a 7/8" bore (?)

I hadn't decided yet, I did find this guy selling complete kits on Ebay, the price isn't bad for everything you get from what I have found so far.

http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&ssPageName=STRK:MEWAX:IT&item=160314246196

http://i6.ebayimg.com/08/i/001/23/17/d5f3_1.JPG

I recently purchased a drum to disc kit for the front of my 67, (not installed yet) and was planning on the master cyl/booster from NAPA. Is there a reason to avoid these?

Kind of a different question than the OP (you may want to start your own new thread to keep from mixing up this one). OP is looking for a master and (maybe) booster to go with a C5 brake upgrade. Stock-style system has different needs.

(FWIW, if you don't care about factory-appearance on a STOCK front disc setup, then the rebuilt units available at your local parts store will work fine and many have lifetime warranty. Be aware that some folks have found that the "rebuilt" units are no good out of the box, so you MAY have to return one if you get a bad one. But for the price, I'd run them...)

Back to the original post -- Regardless of what you end up with, I'd reccomend either the 11" single-diaphragm booster or one of the dual-diaphragm models. The smaller single-stage boosters don't generate as much power assist and can end up with a hard-ish pedal.

You also need to pay attention to the proportioning valve (or combination valve if it comes in a kit). Rear discs require one prop valve, rear drums would need a different prop valve. I prefer the adjustable "race" ones since you can just turn the knob and more or less adjust the system for your car.

I think (?) 65 was still single-circuit brake master cylinder, so you'll need to do some bending up of lines to fit your existing hard linesanyway. If it were my car (and you think your engine makes enough vaccum to run power brakes) I'd go with an 11" booster and 1" vette master cyl from your local parts house if it's a small block. If it's a big block, I'd run a dual 8" booster and a 1" master cyl to fit (most likely it would be the vette one as well). Plumb all this to a stock drum-style distribution block with an adjustable prop valve in the line from the distr. block to the rear...

OR if you need something a little prettier than flat black and cast iron, contact one of the supporting site vendors and have them quote you a stainless master/booster combo.

Thanks Shifty, I have found threads regarding that 67-76 I think it is master, it's most likely the one I will go with. This thread was really to see if anyone had found a MC that would work with the factory pre-bent lines.

I used the Corvette manual master with (new) stock manual drum brake lines. The lines hooked right up, like it was made for it.

I used the MC from a '71 Corvette manual. It has a 1" bore and works well with my C6 front brakes and LS1 rear disk. Use the NAPA site and it does a nice job of telling you the bore diameter of the MC you are looking at.


same MC for me - C5 calipers at all four corners.