C5 Z06 FRONT BRAKE SWAP

Built6spdMCSS

Built6spdMCSS

Greasemonkey
Jun 15, 2012
215
43
Today I installed C5 Z06 front brakes on my SS. I had been piecing this together over the last couple weeks.

Parts breakdown:

ZQ8 Spindle Adapter Brackets: $125 (eBay, link constantly changes, have to search ZQ8 C5 Brake Adapters)
C5 Z06 Calipers, Brackets, Lines: $180 (VetteVillians)
Z06 Rotors & Ceramic Pads: $135 (I pulled the ones that were on my C5 Z06 and put drilled & slotted on it)
Getting Z06 Rotors turned: $20
Disc/Disc Brass Combination Valve: $50 ( http://www.highwaystars.net/brake-proportioning-valve-replaces-gm-1257189-4-wheel-disc-brake-systems/ )

All this here is $510, which isn't too bad.
EDIT: Sold the Blazer stuff in the front that I had on it for $60, so $450 invested here.

The first thing I had done was install the Disc/Disc Valve, pretty much a direct swap.







Parts layout of the rest of the swap



This is a size comparison of the Rotors



Since I had the newer Blazer Brakes on the front, I already had the ZQ8 Spindles. I bought the adapter kit for that which came with some instructions and all the needed hardware. It was pretty straightforward. The Spindle required clearancing with a grinder



Test fitting the adapter bracket. I had painted this, it comes raw steel.



Once that was good I test fitted the Z06 Caliper Brackets



Z06 Calipers and Ceramic Pads went on



Then the lines installed. I had to install new flare nuts, the ones on the car were bonded to the other lines pretty much. I used the C5 Z06 lines, the bottom required a little bending to clear properly.



They fill up the wheel nicely. Took it on a very short test drive because of the weather and the difference was very noticeable. Once the pads seat in it will be nice.



Rear Calipers were painted to match, the rear has LT1 Fbody Disc Brakes.

 
Last edited:
G

Gremlinsteve

Master Mechanic
Mar 6, 2018
250
43
Super

What size wheel
I'm going to try to use my 17 inch ramblers
I'll try test fitting first of course

I have 640 all in and that includes a new master cyl and new rotors
 
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Reactions: Griffin84ss
Firetruck1

Firetruck1

Apprentice
Nov 1, 2017
92
33
How did the conversion effect from the blazer brakes to this effect the balance of hard braking? Also, do you still use the stock master cylinder? Nice build!
 
Built6spdMCSS

Built6spdMCSS

Greasemonkey
Jun 15, 2012
215
43
Master is stock, front bias is still 70%, not sure what you are getting at.
 
Griffin84ss

Griffin84ss

Greasemonkey
Supporting Member
Apr 14, 2017
234
43
Georgetown, ky
Nice conversion and wheel setup you have.!!! Hopefully I can get my 84ss set up like that here soon.!
 
Firetruck1

Firetruck1

Apprentice
Nov 1, 2017
92
33
Master is stock, front bias is still 70%, not sure what you are getting at.
Thank you, do the fronts lock up sooner with the larger front brakes then they did with the blazer parts? Have you considered a adjustable proportioning valve?
 
UNGN

UNGN

Comic Book Super Hero
Sep 6, 2016
2,579
113
Southlake, TX
Thank you, do the fronts lock up sooner with the larger front brakes then they did with the blazer parts? Have you considered a adjustable proportioning valve?
Ideally, the fronts should always lock up before the rears, unless you want to die the next time it rains.

Larger rotors are easier to modulate under hard braking, so if the fronts lock, reduce braking pessure slightly and they will unlock. If the rears lock you can be spinning out of control before you reduce braking pressure.
 
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