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I have a 1994 C4 Corvette and I can across 2016-2020 Cadillac CT6 Brembo Calipers conversion bracket J55 and would the break lines be compatible? Any advice would be greatly appreciated. Do these need a different caliper bracket as well and where would I find them?
Last edited by Big_Philly94’Vette; Jan 5, 2025 at 04:36 PM.
ok, I just came across a good deal on a brand new set and if it can work, it would be a good upgrade.
New rubber brake lines aren't that expensive and they should be replaced anyway. Whenever I get a new to me old car, those are a must change to me. Unless you have already replaced them, I would spend the $40 bucks for the set. My experience has shown me that most brake lines have been standardized in any given make. I added Porsche Macan calipers on my 2011 A4 and both sides of the rubber hoses were identical. I would imagine both should be the same on the Chevy too.
ok, I just came across a good deal on a brand new set and if it can work, it would be a good upgrade.
It's not a bolt on ordeal.
If they're the calipers I think he's using, you need to cut the tabs off your upright, and bolt onto the back hub bolts. You need to do this as the 4 piston setup protrudes (positive offset) into the wheel. This same reason also causes you to use a different rotor. While bigger, needs the center opened a little to fit the corvette hub.
If they're the calipers I think he's using, you need to cut the tabs off your upright, and bolt onto the back hub bolts. You need to do this as the 4 piston setup protrudes (positive offset) into the wheel. This same reason also causes you to use a different rotor. While bigger, needs the center opened a little to fit the corvette hub.
ok, thank you but, that sound a little bit more than I want to take on right now.
I have the parts listed on a Excel file at home. I will post them up tomorrow. I believe 14" rotors and a little bit of clearancing on the caliper are required.
Here are the notes I have taken about the swap I plan on doing.
Notes:
Need adapter to take C4 spindle to C5/6 calipers.(I understand there are conversion brackets available for this).
ATS Calipers
C6 Z06 Rotors https://www.youtube.com/watch?v=hM5oDQ2OLhU
Pricing and part numbers:
Calipers - L 2013+ ATS 172-2768
Calipers - R 2013+ ATS 172-277
Caliper Mounting Bolts 11611085
Caliper Pin Kit with Bridge 18K1971X
Brake Pads 17D1050M
C6 Z06 Rotor J56 18A2535SD
I did 4 piston brembos off of a Gen 1 CTS-V up front and used front 14" C6 Z06 rotors... I ordered 1" longer braided brake lines to put them together. The calipers damn near bolt to the knuckle without any modifications, the only thing I had to do was open up some one of the mounting holes so it would line up better then I added some grade 8 washers to center the caliper properly on the rotors.
When i did C6 Grand Sport wheels i found that the front 18" would not clear a Gen 1 CTSV 4 piston brembo without a 1" wheel adapter
. The reason for this is the barrel on the inner portion of the wheel tapers too much towards the backside of the spokes. The only solution was to space the wheel out so that the bulkey caliper lives in the bigger diameter portion of the inner barrel.
I have since changed my wheel setup to a CCW 19" setup all around that I am a little more happier with
Last edited by Impala Balko; Jan 8, 2025 at 04:50 PM.
I ordered up the calipers and rotors from evilBay. I got a "remanufactured" set from Detroit Axle and to my surprise, they were brand spanking new Cadillac calipers loaded with hardware and pads. https://www.ebay.com/itm/166729349786
The whopping total was $125 for both calipers. They look like they have some scratches on them and they are basically factory rejects, but otherwise new.
I am probably going to be starting on this project tonight considering I have literally zero brakes right now on my $500 parts car. I will post up pics and commentary as they come.
Here is a size comparison of the factory rotor with the C6 Z06 rotor.
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The brackets I bought from SendCutSend bolted up great except that the factory caliper bolts (which work just fine on the Camaro/ATS caliper) are larger than the holes I ordered drilled. I have to hog them out to 5/8". I will take some pics of that. I don't think I cam going to have too much clearancing of the caliper, but I haven't gotten that far yet.
Edit:
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Last edited by marshallnoise; Aug 20, 2025 at 01:16 PM.
Here is a size comparison of the factory rotor with the C6 Z06 rotor.
The brackets I bought from SendCutSend bolted up great except that the factory caliper bolts (which work just fine on the Camaro/ATS caliper) are larger than the holes I ordered drilled. I have to hog them out to 5/8". I will take some pics of that. I don't think I cam going to have too much clearancing of the caliper, but I haven't gotten that far yet.
Edit:
I have these same calipers that I want to put on my '94. Can you post a picture of the brackets you had made? Did you design them? Thanks
I have these same calipers that I want to put on my '94. Can you post a picture of the brackets you had made? Did you design them? Thanks
No, I got it from a guy here on the forum. There is a link in the post to the file. Just upload it to SendCutSend, select your material and you are off and running. Turns out it was $41.50 shipped. https://www.corvetteforum.com/forums...p-84-87-a.html
I am not sure they will work on the 94 though. But you get the idea. It is just a flat piece of metal with two sets of holes: one for the factory mount to the spindle and the other for the caliper.
Last edited by marshallnoise; Aug 20, 2025 at 05:22 PM.
No, I got it from a guy here on the forum. There is a link in the post to the file. Just upload it to SendCutSend, select your material and you are off and running. Turns out it was $41.50 shipped. https://www.corvetteforum.com/forums...p-84-87-a.html
I am not sure they will work on the 94 though. But you get the idea. It is just a flat piece of metal with two sets of holes: one for the factory mount to the spindle and the other for the caliper.
I got the driver's side installed. I used the factory banjo bolt and the factory line. The factory caliper bolts are too long so I had to use some washers to make sure it tightened up just fine. I also had to clearance the back of the caliper on the back where it interfered with the SendCutSend brackets. I could have ground the brackets but that material is exceedingly hard. Aluminum is much softer so that is what I went with. The caliper and pads could accommodate 3/8" more rotor, so 14" rotors work fine, but if you found a little larger rotor, it would work. But then you would have clearance issues with it running into the caliper where the rotor sits so I am ok with what I got. The pads contact the full interior of the rotor. No clearance issues with the 18" wheels either. I will upload pics tomorrow.
C4 and using 2016-2020 Cadillac calipers
