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Is C8 wheel bolt pattern same as C7 ?

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Old Sep 17, 2019 | 12:49 PM
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Default Is C8 wheel bolt pattern same as C7 ?

im not talking offsets i have that figured out, im just asking will a c6/7 wheel bolt on a C8 , i keep hearing about 5x120 instead of 5x120.65 and the c8 studs are thicker ? anyone know for sure ?
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Old Sep 17, 2019 | 01:04 PM
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Originally Posted by savage
im not talking offsets i have that figured out, im just asking will a c6/7 wheel bolt on a C8 , i keep hearing about 5x120 instead of 5x120.65 and the c8 studs are thicker ? anyone know for sure ?
I am sure the pattern is different. I read this 2 weeks ago and cannot recall the source now. I believe they said the studs and the stud pattern diameter is different. They went to 5x120.65 No doubt a change has been made. I'll see if I can track source down.
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Old Sep 17, 2019 | 01:23 PM
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Originally Posted by MMD
I am sure the pattern is different. I read this 2 weeks ago and cannot recall the source now. I believe they said the studs and the stud pattern diameter is different. They went to 5x120.65 No doubt a change has been made. I'll see if I can track source down.
Thanks for responding but I need to know 100% with no doubt I can’t bolt the c6/7 bolt pattern on c8 . Thanks
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Old Sep 17, 2019 | 08:27 PM
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Element shows the wheel fitment as Bolt Pattern: 5x4.75/120.7
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Old Sep 17, 2019 | 08:42 PM
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The lug bolt size has increased from the C7's 12MMX1.25MMto14X1.5MM (as we expected since the Camaro ZL1 1LE did). As a consequence, the C8's wheel holes that surround the lug nuts, had to have their inside-diameter be increased.
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Old Sep 18, 2019 | 10:07 PM
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Road and Track article shows bolt pattern to be 5 x 120

https://www.roadandtrack.com/new-car...-photos-specs/





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Old Sep 18, 2019 | 10:25 PM
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Originally Posted by Gotcha
Road and Track article shows bolt pattern to be 5 x 120

https://www.roadandtrack.com/new-car...-photos-specs/



Thanks, looks like I need to buy autocross wheels
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Old Sep 18, 2019 | 10:30 PM
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Originally Posted by Gotcha
Road and Track article shows bolt pattern to be 5 x 120

https://www.roadandtrack.com/new-car...-photos-specs/



I read an online report from a good source about 3 weeks ago.. I have been searching to find this link for the last 3 days. The article contradicts the numbers listed above. C8 and C7 wheels cannot be swapped. The article I am looking for says a 120.67mm stud diameter with 14MM studs. I will continue to look.
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Old Sep 19, 2019 | 10:37 AM
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This is a good link straight from GM

https://media.chevrolet.com/media/us...2020.tab1.html
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Old Sep 19, 2019 | 12:27 PM
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Default C8 Lug Nut Socket Size?

So what size will the C8 lug nut socket be?

Originally Posted by MMD
The lug bolt size has increased from the C7's 12MMX1.25MMto14X1.5MM (as we expected since the Camaro ZL1 1LE did). As a consequence, the C8's wheel holes that surround the lug nuts, had to have their inside-diameter be increased.
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Old Sep 26, 2019 | 09:34 AM
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Assuming the bolt circle is the same any quality wheel repair shop could re drill the wheels for a minimal cost to fit the 14mm stud.
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Old Sep 26, 2019 | 09:07 PM
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Originally Posted by Sirk17
Assuming the bolt circle is the same any quality wheel repair shop could re drill the wheels for a minimal cost to fit the 14mm stud.
If the bolt circle isn’t the same and the diameter grew almost .7 mm. You would have to have the tires dismounted and the wheels taken to a machine shop. They would have to set up a mill on the bolt circle and use an end mill to put the new size in for the studs. You can’t just drill the holes.

Before this is done you need to make sure that the structural integrity isn’t compromised in any way.

Last edited by firstgear; Sep 26, 2019 at 09:11 PM.
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Old Sep 27, 2019 | 09:11 AM
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Why not wait until the car is in hand and in stock before you order something. Seems like a huge a gamble to order wheels without knowing 100% for sure of the actual stud size, bore size and bolt circle.
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Old Sep 27, 2019 | 03:10 PM
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So much bad info.

1. The C5/6/7 was not 12mm x 1.25, they were 12mm x 1.5

2. C8 is confirmed 5 x 120 and 14mm studs

Your C7 wheels will not bolt up.
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Old Apr 8, 2020 | 02:58 PM
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The C7 jacking pucks will fit the C8. The C5 and C6 with steel frame will not.
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Old Apr 8, 2020 | 02:59 PM
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Originally Posted by savage
Thanks for responding but I need to know 100% with no doubt I can’t bolt the c6/7 bolt pattern on c8 . Thanks
No it is different. You could actually mount the wheel but it will not torque down properly.
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Old Apr 18, 2020 | 12:14 PM
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Originally Posted by dfettero
So what size will the C8 lug nut socket be?

22mm
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Old Apr 18, 2020 | 05:47 PM
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Originally Posted by Modshack
22mm
22MM and 140 lb torque up from 100 on prior gen Vette.
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Old Apr 18, 2020 | 07:22 PM
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Originally Posted by C8-Vette
22MM and 140 lb torque up from 100 on prior gen Vette.
Any guesses why Corvette engineers would have increased lug torques? That's a big jump.
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Old Apr 18, 2020 | 09:21 PM
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14mm stud. Bigger bolts use bigger torque.
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