Corvette Engineering Reference

C8 Corvette
Wheel Fitment FAQ

Vehicle-specific fitment, forged construction, brake clearance, wheel sizing, concavity, lip depth and finish guidance for C8 Stingray, Z51, Z06, E-Ray and ZR1.

StingrayZ51Z06E-RayZR1
Explore Corvette Wheels
Factory reference

C8 Wheel Specifications

ModelFrontRearPCDCenter BoreStud
Stingray / Z51 19×8.5 ET52
245/35ZR19
20×11 ET64
305/30ZR20
5×120 F/R66.9 mmM14×1.5
Z06 / E-Ray 20×10 ET35
275/30ZR20
21×13 ET40
345/25ZR21
5×120 F/R66.9 mmM14×1.5
ZR1 20×10 ET35
275/30ZR20
21×13 ET40
345/25ZR21
5×120 F / 5×130 R66.9 mmM14×1.5
ZR1 Rear
Separate engineering application. The ZR1 rear wheel is produced from a dedicated engineering file and is completely different from the Z06 / E-Ray rear wheel. The two are not interchangeable.
Quick reference

Common Street Fitment

Stingray / Z51
Front19×9 ET36
Rear20×11.5 ET48
Z06 / E-Ray
Front20×10 ET27
Rear21×13 ET22
ZR1
Front20×10 ET27
Rear21×13 ET22
ZR1-specific rear engineering file · 5×130 rear PCD
Spacers
Not required when a VORX wheel is engineered to the final width, offset and brake package.
Finish reference

Corvette Color & Finish Pairings

Every Corvette color can be finished in chrome. We also offer polished + clear coat, brushed aluminum, satin and gloss finishes. Factory-color matching and custom-color + black two-tone combinations are available.

Torch Red / Red Mist

Brushed aluminum, polished + clear coat, chrome, satin black, gloss black, or a dark center with polished lip.

Rapid Blue / Riptide Blue

Brushed aluminum, polished, chrome, satin gunmetal, gloss black, or blue details paired with black.

Arctic White

Gloss black, polished, chrome, satin bronze, or a white center with polished outer lip.

Black / Carbon Flash

Polished, chrome, brushed aluminum, satin bronze, or a contrasting two-tone finish.

Sea Wolf / Hypersonic Gray

Brushed dark clear, polished, chrome, satin black, gunmetal or bronze.

Sebring Orange / Competition Yellow / Hysteria Purple

Brushed aluminum, polished, chrome, gloss black, or custom body-color details paired with black.

FAQ

Corvette Wheel Questions

How does the production and payment process work?+

To begin production, customers can pay a 30% deposit. Alternatively, you may first pay a $200 engineering drawing fee so our team can prepare drawings for design and fitment confirmation. This $200 is not an additional charge—it will be credited toward the remaining 70% balance once the order proceeds. After the design is confirmed, we will move forward with production.

What is the most common flush fitment for each C8 model?+
ModelFrontRear
Stingray / Z5119×9 ET3620×11.5 ET48
Z06 / E-Ray20×10 ET2721×13 ET22
ZR120×10 ET2721×13 ET22 · ZR1-specific rear

This is only a rough reference for flush fitment. Everyone has a different idea of what “flush” means. The best approach is to take one simple measurement: measure the distance from the wheel or tire to your target fitment position.

VORX flush fitment measurement guide
Measure from the outermost vertical line of the fender to the wheel lip. Send us that number together with your current wheel specification, and we can calculate the final width and ET from there.
Corvette wheel lip depth and concavity measurement diagram
What wheel sizes can I upgrade to on a C8 Stingray?+
Factory size
19×8.5 front / 20×11 rear
Largest no-modification size we recommend
21×9 front / 22×12 rear

When the correct offset and tire profile are used, 21×9 / 22×12 can be built as a no-body-modification street setup on a stock-body Stingray.

If you choose an upgraded wheel size, our engineers will recommend the appropriate tire size so the overall rolling diameter, fender clearance and front/rear balance remain within the intended range.

Can the factory tires be reused with VORX wheels?+
If you keep the factory wheel size
Yes — you can continue using the factory tires.
If you change wheel diameter
The tire must change with it, and our engineers will recommend the correct tire size for the final wheel specification.
Can Z06 or E-Ray wheel specifications be used on a Stingray?+

No.

The C8 Stingray and Z51 use a narrower body and different fitment geometry than the widebody Z06, E-Ray and ZR1. The factory wheel specifications reflect that difference.

ApplicationFrontRear
Stingray / Z5119×8.5 ET5220×11 ET64
Z06 / E-Ray20×10 ET3521×13 ET40
ZR120×10 ET35 · 5×12021×13 ET40 · 5×130

Trying to use the wider, lower-offset Z06 / E-Ray geometry on a Stingray can create clearance problems at the fender, liner or suspension. If the goal is simply the deeper Z06-style look, the correct solution is a Stingray-specific width and offset that creates the same visual depth without copying the widebody fitment.

How do you make sure the wheels clear my brakes?+

We already have the complete OEM fitment data for the C8 brake packages we support: Stingray, Z51, Z06, Z07, E-Ray and ZR1, including the relevant iron and carbon-ceramic configurations.

What we need from you
1) Has the car been modified? 2) Has the brake package been changed or upgraded?
What we check
Spoke-to-caliper clearance, barrel clearance and hub-pad geometry against the actual brake package on the car.
Normal recommendation
We only recommend specifications intended to provide zero contact under normal use.
If you want a more extreme look
Tell us before the drawing stage. We can engineer toward that target if you are willing to accept the associated trade-offs.

Overall wheel and tire clearance is also reviewed for steering lock and expected suspension travel before the face design is finalized.

Everything is built around your specific requirements.
Do I still need spacers with VORX wheels?+

If you are running standard off-the-shelf wheels and want a more aggressive position, spacers are often the easiest way to move the wheel outward.

With VORX custom wheels, the spacer is unnecessary. Every wheel is built to the required width, offset and brake package, so the final position is machined directly into the wheel specification.

GoalStandard wheel + spacerVORX custom wheel
Deeper front position19×8.5 + 15–20 mm spacer19×9.5 with the ET built for the target stance
Aggressive rear stance20×11 + 20–25 mm spacer20×12 with the ET built for the target stance
Large brake packageSpacer only changes position; it does not redesign the spoke or barrel geometrySpoke, barrel and hub pad are designed around the actual caliper package
  • Spacers add another joint and another set of tolerances between the hub and wheel.
  • Poor hardware, incorrect installation or insufficient stud engagement can reduce the safety margin.
  • Moving the wheel outward also changes scrub radius and bearing load, so the final geometry should be chosen deliberately rather than added afterward.
Our philosophy: achieve the required look and fitment in the wheel itself, with the fewest unnecessary components.
What are the C8 Corvette PCD, center bore and stud specifications?+
ModelPCDCenter BoreStud
Stingray / Z515×120 F/R66.9 mmM14×1.5
Z06 / E-Ray5×120 F/R66.9 mmM14×1.5
ZR15×120 Front / 5×130 Rear66.9 mmM14×1.5
ZR1 rear: The ZR1 rear wheel is produced from a separate engineering file and is completely different from the Z06 / E-Ray rear wheel; the two are not interchangeable.
Can the factory TPMS and valve hardware be reused?+
Valve stem
Each VORX wheel is machined with a dedicated valve-stem hole.
TPMS
A separate TPMS mounting provision is also machined into the wheel.
Compatibility
The original C8 valve hardware and factory TPMS can normally be reused when the existing components remain serviceable.

If you want to keep the factory wheels as a complete second set, we can also build the VORX set around a separate compatible TPMS package.

What is the difference between one-piece and two-piece forged wheels?+
One-Piece ForgedTwo-Piece Forged
ConstructionWheel center and rim are machined as one forged structure with no assembly hardware joining the center to the rim.A forged center is mechanically assembled to a separate rim/barrel using dedicated hardware.
Strength & weightSimple load path and generally the lighter option for the same size and design target.Very strong when engineered correctly, but normally carries some additional mass from the separate components and hardware.
Design directionBest suited to clean, deep-concave designs.Best suited to deep-lip designs, exposed hardware and more dramatic center/barrel separation.
CustomizationFace, pockets and machining details can still be customized.Center, outer lip/barrel and hardware can use different colors or finishes; lip depth can also be tuned through the final fitment geometry.
ServiceabilityIf the wheel is seriously damaged, the complete wheel may need to be repaired or replaced as one unit.Depending on the damage, an outer rim/barrel or other serviceable component can often be replaced separately.
Best choiceChoose monoblock when lower weight, structural simplicity and concavity are the priority.Choose two-piece when deep lip, finish separation and maximum visual customization are the priority.
Why choose forged wheels for a Corvette?+

A recurring concern among C8 owners is cracking of some factory cast wheels, including reports from normal road use. A forged wheel gives us a much stronger material foundation while also allowing the finished wheel to be lighter than a comparable cast design.

For VORX, the bigger advantage is customization. We start from a solid 6061-T6 forged blank and machine the wheel for the exact Corvette: width, offset, spoke structure, hub pad and brake clearance are all determined for that application instead of forcing a generic wheel to fit with spacers or compromises.

Strength
Substantially stronger than a comparable cast wheel.
Weight
Typically lighter while still maintaining the required structure.
Customization
Width, offset, spoke structure and brake clearance are built for the exact car.

In short: stronger, lighter and purpose-built for the car.

What is the maximum lip depth and the deepest concave you can achieve?+

If your goal is the maximum lip depth or the deepest concave possible, tell us before we begin the engineering drawing.

What we calculate
Maximum usable lip depth and maximum face concavity based on your exact wheel size, offset target and brake package.
What controls the result
Vehicle model, target fitment, wheel size and brake clearance.
Our target
Push the design as far as the geometry allows while maintaining the required brake clearance and avoiding contact.

There is no single lip-depth or concavity number that applies to every C8. A Stingray front, Stingray rear and Z06 / ZR1 rear all have different packaging limits.

For an extreme build, the target is simple: maximum visual depth that still clears the brakes and remains functional for the fitment you approved.
Corvette wheel lip depth and concavity measurement diagram
Can VORX match factory Corvette colors?+

Yes. We keep the factory Corvette color references used for our wheel finishes. If you want an OEM body color, just tell us the color name and we can work from that reference.

Torch RedRapid BlueRiptide Blue MetallicArctic WhiteBlackRed Mist MetallicHypersonic GraySea Wolf GraySebring OrangeCompetition YellowHysteria Purple
Factory Corvette colors
Just tell us the color name.
Non-OEM custom colors
We prefer a physical color sample before finishing, because photos are not reliable enough for precise color matching.
Two-tone option
Custom colors can also be combined with black.
What is the difference between chrome and polished finishes?+
ChromePolished + Clear Coat
AppearanceColder, brighter and more mirror-like.Bright mirror finish with a more natural aluminum tone.
ProcessChrome or a chrome-type finish is applied over the prepared wheel surface.The aluminum is mechanically polished and then sealed with clear coat.
MaintenanceRequires care to protect the plated or coated finish.The clear coat protects the polished aluminum, so regular metal polishing is not required.
Cost & lead timeNormally higher cost and longer processing time.Usually the more cost-effective mirror-finish option.

All Corvette colors can be paired with a chrome finish. For most street cars, polished + clear coat is the easier finish to live with while keeping a bright metallic appearance.

Custom Corvette Fitment

Built around the exact car.

Before machining, VORX confirms the model, brake package, tire choice, suspension setup and desired stance. Width, offset, face profile and lip depth are then finalized on the engineering drawing.

Request a Quote
Final production specifications are confirmed on the engineering drawing before machining.