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This is what the parking brake looks like- a miniature drum brake inside the rear brake rotor.
The Chevy Performance rear caliper is basically identical, except the mounting ears are longer to accommodate the bigger rotor.
The stock and Chevy Performance calipers are 4-piston Brembo units.
The C7 Corvette rear brakes are pretty large for a front engine rear drive car because of the C7’s 50/50 weight distribution. More weight in the back causes the rear brakes to share a larger percentage of the braking tasks; this is a good thing.
The Chevy Performance rear rotor on the left is significantly larger than the stock Z51 rotor on the right.
The Chevy Performance rotor is also a fully-floated two-piece rotor to avoid problems with thermal distortion and warping that the stock rotor might suffer from in extremely hard use.
15 comments
Thank you for the video and article regarding the Stingray upgrades. I have been looking at the Chevy brake upgrade but was hesitant due to Chevy performance article stating that the brake upgrade was not compatible with the z51 stock wheels for clearance. I saw your car in the video and read the article that you used the stock wheels. Therefore I wanted to ask if you had any trouble with the stock z51 wheels fitting the upgrade? Was a spacer needed? Thank you for any help or detailed pictures regarding brake clearance with stock z51 wheels.
Yes, we had to run a 5mm spacer to clear the calipers in the front.
What is the weight difference between the OEM z51 brakes and the upgrading unots?
They are slightly heavier. A couple of pounds I belive.
They are slightly heavier. A couple of pounds I believe.
Which are you referring to as being heavier, the OEM units or the upgraded units? Do you know the actual weight of the upgraded calipers and rotors?
can you put the upgrade on a z51 stingray
Yes, this is a Z51 and it fit fine.
Can you upgrade base stingray to big brake kit
Yes, all the parts apply.
What is the GM part number for this kit? My local GM Performance dealer was quite confused! The entire C7 project series was amazing and gave me inspiration to upgrade my 2019 Z51.
Front kit: 23386144
Rear kit: 23386145
ST Suspensions spacers for front wheels (5mm): 56055021
So you did the video showing the b4 the Z51 brake upgrade. What about the after video (I can’t seem to find it). Also it appears that there are disclaimers for using this upgrade kit and it appears the spacer is not available.
Please advise.
Thanks in advance..
Hi,
Thanks for the article !! I love it.
So everything bolted up fine with original z51 bolts and no adapters required ?
All I would need is ZO6 Calibers, Rotors, Brake Pads and Brake Lines for Front and Rear?
In addition to 5mm spacer if running z51 wheels.
Hey! Did you ever get an answer to this?