mobile-menu-icon
GM Authority

2025 Corvette ZR1 vs. Z06 vs. E-Ray vs. Stingray: Powertrain Specs Compared

GM has officially unveiled the new 2025 Corvette ZR1, expanding the mid-engine C8 lineup with a true track-weapon spec complete with a new boost-fed engine. The power plant in question is the twin-turbocharged 5.5L V8 LT7, which is essentially a turbo variant of the 5.5L V8 LT6 cradled by the C8 Z06. Which begs the question – how do the ZR1’s specs line up against those of the rest of the C8 lineup? To find out, we’re putting the ZR1 up against the C8 Z06, the C8 E-Ray, and the C8 Stingray with the following comparison.

First and foremost, the 2025 Corvette ZR1 is far and away the most powerful variant of the bunch – in fact, the new ZR1 is the most powerful production Corvette ever made. To that end, the ZR1 lays down an impressive 1,064 horsepower at 7,000 rpm and 828 pound-feet of torque at 6,000 rpm. By contrast, the naturally aspirated 5.5L V8 LT6 engine equipped by the 2025 Corvette Z06 delivers 670 horsepower at 8,400 rpm and 460 pound-feet of torque at 6,300 rpm. Meanwhile, the E-Ray combines the naturally aspirated 6.2L V8 LT2 engine with an electric motor, providing a combined output of 655 horsepower, making for an additional 160 ponies over the Stingray’s 495 horsepower.

The Corvette ZR1 also has the lowest compression ratio of the bunch at 9.8:1, while the Z06 is set at 12.5:1, and the E-Ray and Stingray are both set at 11.5:1. The ZR1, Z06, E-Ray, and Stingray all utilize a dry sump oiling system, but the ZR1 incorporates a seven-stage system compared to the six-stage system in the Z06.

Transmission types across all models are consistent, with each Corvette variant equipped with the GM eight-speed dual-clutch automatic co-developed with Tremec. However, The ZR1’s eight-speed was beefed up considerably to handle the extra power.

Differences in vehicle weight are notable as well, with the Corvette ZR1 coupe weighing in at 3,670 pounds, compared to 3,434 pounds for the Z06. The E-Ray is the heaviest due to its hybrid system, weighing in at 3,774 pounds, while the Stingray coupe is the lightest at 3,366 pounds.

Check out the full spec comparison below:

2025 Corvette ZR1 vs Z06 vs E-Ray vs Stingray Powertrain And Drivetrain Specs
ZR1 Z06 with Z07 Package Z06 E-Ray Stingray with Z51 package Stingray
Type Twin-Turbo 5.5L V8 5.5L V8 5.5L V8 6.2L V8 HEV 6.2L V8 6.2L V8
Engine Code LT7 LT6 LT6 LT2 LT2 LT2
Bore and Stroke (in. / mm) 4.104 x 3.150 / 104.25 x 80 4.104 x 3.150 / 104.25 x 80 4.104 x 3.150 / 104.25 x 80 4.06 x 3.62 / 103.25 x 92 4.06 x 3.62 / 103.25 x 92 4.06 x 3.62 / 103.25 x 92
Oiling System Seven-stage dry sump (8 qt. capacity) Six-stage dry sump (8 qt. capacity) Six-stage dry sump (8 qt. capacity) Dry sump (7.5 qt. capacity) Dry sump (7.5 qt. capacity) Dry sump (7.5 qt. capacity)
Oil Type Dexos R 5W50 synthetic Dexos R 5W50 synthetic Dexos R 5W50 synthetic Dexos 2 0W40 synthetic Dexos 2 0W40 synthetic Dexos 2 0W40 synthetic
Compression Ratio 9.8:1 12.5:1 12.5:1 11.5:1 11.5:1 11.5:1
Valvetrain DOHC 32-valve DOHC 32-valve DOHC 32-valve OHV 16-valve OHV 16-valve OHV 16-valve
Throttle Body Twin 65mm single bore Twin 87mm single bore Twin 87mm single bore 87mm single bore 87mm single bore 87mm single bore
Charging Twin 76 mono-scroll ported shroud ball bearing turbos (67mm MAR compressor), E-Waste gates - - - - -
Charge Cooling Dual engine-mounted water to air charge coolers - - - - -
Horsepower (hp / kW @ rpm) 1,064 / 873 @ 7,000 670 / 500 @ 8,400 670 / 500 @ 8,400 495 / 369 @ 6,450 495 / 369 @ 6,450 490 / 365 @ 6,450
Torque (lb.-ft. / Nm @ rpm) 828 / 1,123 @ 6,000 460 / 623 @ 6,300 460 / 623 @ 6,300 470 / 637 @ 5,150 470 / 637 @ 5,150 465 / 630 @ 5,150
Electric Motor horsepower (hp / kW) - - - 160 / 120 - -
Electric Motor Torque (lb.-ft. / Nm) - - - 122 / 195 - -
Battery Type - - - Lithium-ion - -
Battery Capacity (kWh) - - - 1.9 - -
Combined Output (hp / kW) - - - 655 / 481 - -
Transmission Type 8-speed dual-clutch 8-speed dual-clutch 8-speed dual-clutch 8-speed dual-clutch 8-speed dual-clutch 8-speed dual-clutch
Transmission Code M1K M1L M1L M1L M1L M1L
Front Suspension Double wishbone, forged aluminum upper and cast aluminum L-shape lower control arms; monotube shock absorbers (specific calibration with available ZTK package) Double wishbone, forged aluminum upper and cast aluminum L-shape lower control arms; monotube shock absorbers (46mm) Double wishbone, forged aluminum upper and cast aluminum L-shape lower control arms; monotube shock absorbers (46mm) Double wishbone, forged aluminum upper and cast aluminum L-shape lower control arms; monotube shock absorbers (46mm) Double wishbone, forged aluminum upper and cast aluminum L-shape lower control arms; monotube shock absorbers (46mm) Double wishbone, forged aluminum upper and cast aluminum L-shape lower control arms; monotube shock absorbers (46mm)
Rear Suspension Double wishbone, forged aluminum upper and cast aluminum L-shape lower control arms; direct-acting stabilizer bar; monotube shock absorbers (specific calibration with available ZTK package) Double wishbone, forged aluminum upper and cast aluminum L-shape lower control arms; direct-acting stabilizer bar; monotube shock absorbers (46mm) Double wishbone, forged aluminum upper and cast aluminum L-shape lower control arms; direct-acting stabilizer bar; monotube shock absorbers (46mm) Double wishbone, forged aluminum upper and cast aluminum L-shape lower control arms; direct-acting stabilizer bar; monotube shock absorbers (46mm) Double wishbone, forged aluminum upper and cast aluminum L-shape lower control arms; direct-acting stabilizer bar; monotube shock absorbers (46mm) Double wishbone, forged aluminum upper and cast aluminum L-shape lower control arms; direct-acting stabilizer bar; monotube shock absorbers (46mm)
Magnetic Ride Control 4.0 Standard Standard Standard Available Available Available
Steering Type Variable-ratio rack-and-pinion with electric power assist; includes Active Steer Stops Variable-ratio rack-and-pinion with electric power assist; includes Active Steer Stops Variable-ratio rack-and-pinion with electric power assist; includes Active Steer Stops Variable-ratio rack-and-pinion with electric power assist; includes Active Steer Stops with available MRC 4.0 Variable-ratio rack-and-pinion with electric power assist; includes Active Steer Stops with available MRC 4.0 Variable-ratio rack-and-pinion with electric power assist; includes Active Steer Stops with available MRC 4.0
Steering Ratio 15.7:1 15.7:1 15.7:1 15.7:1 15.7:1 15.7:1
Turning Circle (ft. / m) 38 / 11.6 38 / 11.6 38 / 11.6 38 / 11.6 38 / 11.6 (36.4 / 11.1 with MRC 4.0) 38 / 11.6 (36.4 / 11.1 with MRC 4.0)
Brake Type eBoost-assisted carbon ceramic discs with six-piston/monobloc front calipers and four-piston/monobloc rear calipers eBoost-assisted carbon ceramic discs with Brembo four-piston/two-piece front calipers and four-piston/monobloc rear calipers eBoost-assisted discs with Brembo four-piston/two-piece front calipers and four-piston/monobloc rear calipers eBoost-assisted carbon ceramic discs with Brembo four-piston monobloc calipers eBoost-assisted discs with Brembo four-piston monobloc calipers eBoost-assisted discs with Brembo four-piston/two-piece front calipers and four-piston/monobloc rear calipers
Front Brake Rotor Size (in. / mm) 15.7 x 1.5 / 398 x 38 15.7 x 1.5 / 398 x 38 14.6 x 1.3 / 370 x 34 15.7 x 1.5 / 398 x 38 13.6 x 1.18 / 345 x 30 12.6 x 1.18 / 321 x 30
Rear Brake Rotor Size (in. / mm) 15.4 x 1.3 / 391 x 34 15.4 x 1.3 / 391 x 34 15.0 x 1.3 / 380 x 34 15.4 x 1.3 / 391 x 34 13.8 x 1.06 / 350 x 27 13.3 x 1.02 / 339 x 26
Front Wheel Size 20-inch x 10-inch 20-inch x 10-inch 20-inch x 10-inch 20-inch x 10-inch 19-inch x 8.5-inch 19-inch x 8.5-inch
Rear Wheel Size 21-inch x 13-inch 21-inch x 13-inch 21-inch x 13-inch 21-inch x 13-inch 20-inch x 11-inch 20-inch x 11-inch
Front Tire Size 275/30ZR20 275/30ZR20 275/30ZR20 275/30ZR20 245/35ZR19 245/35ZR19
Rear Tire Size 345/25ZR21 345/25ZR21 345/25ZR21 345/25ZR21 305/30ZR20 305/30ZR20
Coupe Dry Weight (lbs. / kg) 3,670 / 1,665 3,434 / 1,561 3,500 / 1,588 3,774 / 1,712 3,366 / 1,530 3,366 / 1,530
Convertible Dry Weight (lbs. / kg) 3,758 / 1,705 3,599 / 1,633 3,599 / 1,633 3,856 / 1,749 3,467 / 1,576 3,467 / 1,576
Fuel Tank Capacity (gal. / L) 18.5 / 70 18.5 / 70 18.5 / 70 18.5 / 70 18.5 / 70 18.5 / 70

As a reminder, all C8 variants ride on the GM Y2 platform, with production taking place exclusively at the GM Bowling Green plant in Kentucky.

Subscribe to GM Authority for more mid-engine Corvette news, C8 news, Chevy Corvette news, Chevy news, and around-the-clock GM news coverage.

[nggallery id=1290]

Jonathan is an automotive journalist based out of Southern California. He loves anything and everything on four wheels.

Subscribe to GM Authority

For around-the-clock GM news coverage

We'll send you one email per day with the latest GM news. It's totally free.

Comments

  1. Love it! Great to be introduced in the Corvette Team racing yellow.

    Reply
  2. Same compression ratio as the lm7 5.3 from 2001 😬 how many PSI of boost is this running??? Single digit fuel economy? Same their being forced to 5.5L. A 7-8L supercharged blog block would have been a better choice.

    Reply
    1. Steve knows so much more than the engineers who worked on this car. How did they ever do it without his infinite expertise?

      Reply
  3. Was expecting the Zr1 to be the LT6 shoehorned into the E-ray… interesting they went with TT

    Reply
    1. Rumor is that the Zora will have the whole package, LT7 + Electric Motors.

      Reply
  4. Ja es ist “schon wieder” eine weitere Super Corvette für viele Menschen die GELD sinnvoll nutzen.

    Auch ich habe keine 1064 HP (1073 PS) erwartet und wie man sehen kann sind 200 HP je Liter Hubraum auch für über 150.000 mls Kundennutzung möglich, aber diese Performance wird man selten nutzen können.
    Interessant ist auch, dass der Motor als 2×4 Zylinder laufen kann – zum Benzin sparen für die EPA und ggf. Notlauf Funktion.

    Mit der ZORA kommt dann wohl der Bugatti Mytus Zerstörer mit 1500 HP!!!

    Viel Erfolg dem Corvette Team und allen die nun in den Ruhestand gehen aber immer im Corvette Team bleiben1

    Reply
  5. I don’t get it. Why is Corvette trying so hard to be McLaren or Lamborghini? I don’t want a Corvette that sounds like turbocharged euro trash. I also don’t want to spend that kind of money on a car that’s going to be joy ride bait at Lot Rat Chevrolet or on a lift next to a Malibu and being worked on by the same person. I also don’t want to pay the insane ADM or fight the war it takes to get one. As a current C8 owner whose been on a list for the ZR1 at 5 different dealers since 2020 – this thing does absolutely nothing for me. It’s just not a Corvette.

    On a positive note – I do love that they finally got yellow right for the first time since 1990.

    Reply
    1. if they brought back round tail lights would that make you happy?

      Reply
    2. Jim you need help.

      You have a C8 and you sound like you are not ZR1 material anyways. First if you want to buy a early one you will over pay due to the dealers. I bet you over payes on the C8 you have now. Whose fault is that?

      I sit smiling on my low mile C5 I picked up a couple years ago cheap in like new condition. It suits me fine till the C8 is prices as it should be and then I will make my move.

      Only an idiot would pay the higher price and a fool to complain about it. Good things come to those smart enough to wait.

      Reply
    3. Corvette is copying Ferrari and Lamborghini because they kept loosing to classic American muscle, so they rigged the GT race classes to keep big blocks and superchargers out of it. If your spending 150-200K, your going to want to race your car. Chevy would have loved to take the LT2 and given it the LT5 treatment. Would have been cheaper to engineer and produce, but their hands are tied. Also, this is why the dual clutch transmission. Tremec had this transmission designed back in 2017. Chevy was dumping all their R&D into the Gemini project and thus didn’t have any funds for making a rear transaxle version of their 10l90, which is lighter, more efficient, shifts faster, allows for converter launches and is more durable than the tremec cog box.

      Reply
    4. Yeah no one is forcing you to buy this, they make the Corvette is many different flavors so people can make the choice. For some reason you’re acting like that’s a bad thing. A lot of people said the C8 in general wasn’t a Corvette, what do you say to them?

      Reply
  6. …. God bless GM.. god bless president Trump, god bless America, and all the GOD-FEARING patriots for making these masterpieces. If the Biden administration continues for another term, all the woke EV craps are going to be everywhere and we have to say goodbye to ICE cars.

    Reply
    1. Outstanding but 70 L tank is totally inadequate.

      Reply
  7. It’s a 350. Nothing but LOVE, LOVE, LOVE… That “350” hints of great things to come. 😉

    Reply
  8. Look out European Super- Cars. American Muscle is here and at a deal of a $$$. Plus the warranty of this 1064 HP Twin Turbo V8 Monster is unbelievable and shows its reliability. Unlike European counterparts. The only downfall , will be the greed of the dealerships and placing unrealistic Market Adjustments ( add on pricing) will need to wait for 2026 and the new interior changes.
    Congratulations Chevrolet – this will be the one to watch when it hits the streets.

    Reply
  9. I have owned 13 Corvettes, starting with a ‘63 Stingray. I am waiting for a Zoro for #14

    Reply

Leave a comment

Cancel