C6 Calipers on C5...

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Apr 2, 2023 | 10:07 PM

#21

Route99

Race Director

Joined: Apr 2017

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From: Hickory NC

2025 C5 of the Year Finalist - Modified

2022 C5 of the Year Finalist - Modified

2020 C5 of the Year Finalist - Modified

St. Jude Donor '17 thru '26

Quote:

Originally Posted by chevyorange

Are the Z06 brakes the same size as these Cadillac ATS ones?

C6 Z06 rotors are 355mm front and approx 330mm rear in diameter; the ATS rotors I am familiar with are 300mm front and 315mm rear.

Apr 2, 2023 | 10:35 PM

#22

chevyorange

Racer

Joined: Dec 2000

Posts: 437

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From: Renton WA

Quote:

Originally Posted by Route99

C6 Z06 rotors are 355mm front and approx 330mm rear in diameter; the ATS rotors I am familiar with are 300mm front and 315mm rear.

Thank you so much!!

I think I have everything I need now, minus the bolts listed... the are out of stock. Are these required or optional?

I can ask my Chevy dealer if there is a replacement part.

Thanks a ton!

Apr 3, 2023 | 08:29 AM

#23

Route99

Race Director

Joined: Apr 2017

Posts: 10,247

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From: Hickory NC

2025 C5 of the Year Finalist - Modified

2022 C5 of the Year Finalist - Modified

2020 C5 of the Year Finalist - Modified

St. Jude Donor '17 thru '26

If you mean bolts to attach the calipers to the knuckles, it has been several years since I swapped to the C6 Z06 brakes but I believe I just used the same bolts that had attached the C5 calipers (they were fairly new from some earlier work). You do need to check that the bolts are not rusty and that the threads are good.
For new bolts check with forum vendors Corvette Central, Cultrag, VetteNuts, or you can go with RockAuto, or local sources like Napa, AutoZone, etc.
Best wishes with your project!

Apr 3, 2023 | 04:20 PM

#24

'Shifter

Team Owner

Joined: Oct 2006

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St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16-'17

NCM Member '09

Mine work just fine, no issues. I went with the Hawk i-piece pads instead of the pucks.

May 15, 2023 | 04:59 PM

#25

jfigus

Instructor

Joined: Oct 2021

Posts: 185

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From: Raleigh

Surprised nobody has asked... are there ABS compatibility issues with these Cadillac calipers? Looking at the specs on the Wilwood calipers for the C5, they specifically mention their caliper cylinder volume is compatible with the C5 ABS controller and master cylinder.

May 15, 2023 | 05:16 PM

#26

'Shifter

Team Owner

Joined: Oct 2006

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St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16-'17

NCM Member '09

C6z's work just fine with C5 master/ABS, I'd imagine the Cad stuff would be the same.

May 17, 2023 | 08:58 AM

#27

Kubs

Le Mans Master

Joined: Oct 2007

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From: Akron Ohio

2025 Corvette of the Year Finalist - Modified

2024 C5 of the Year Winner - Modified

2023 C5 of the Year Finalist - Modified

2022 C5 of the Year Finalist - Modified

St. Jude Donor '09-'10-'11

The Cadillac calipers have larger piston bores so the volume is larger than the stock C5 or C6 calipers. This will result in slightly longer pedal travel, but the ABS should be able to handle it.

May 17, 2023 | 10:38 AM

#28

jjc508520

Melting Slicks

Joined: Aug 2014

Posts: 2,470

Likes: 460

From: East Windsor NJ

Quote:

Originally Posted by TiRider

Clarifying this will help me for my next mod...'00 'Vert, base model. A years back I upgraded to C5 Z06 brakes, new calipers, rotors, braided brake lines, etc.

Just bought a set of C6 Z06 calipers having read on here a few times it was a rather simple swap. But I'm wondering now if I also need to change out the rotors?

Will my current rotors work or perhaps the better question, what is the minimum diameter rotor needed for these C6 Z06 calipers?

It can turn into an expensive project - C6Z powder-coated calipers, 2-piece rotors, new 19 + 18 wheels and tires - $4500 easily. I was told the factory C6Z front rotor weighs a ton so I bit the 2-piece bullet....