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Corvette C8 Engine, Transmission

2020 Chevrolet Corvette C8 Stingray Engine LT2
A new engine - designated LT2 - accompanied the new engine position. It's SAE-certified to 495 hp / 369 kW @ 6,450 rpm with the performance exhaust. Torque is SAE-certified to 470 lb.-ft. / 637 Nm @ 5,150 rpm with the performance exhaust.

Dry sump lubrication is standard on the new LT2. It had been available on the C6 (with the Z06 and ZR1) and had been part of the Z51 package on the C7. What is exceptional regarding the C8 is that at the $60,000 starting price, dry sump is included, which is unheard of in a performance car. It was necessary to include the system to lower the engine in order to mate it properly with the transmission and to lower the center of gravity. The system includes three scavenge pumps. Below right: An inside look at the dry sump system.

Corvette C8 Exhaust Header Inside View Corvette C8 Dry Sump
Below and above left: The exhaust manifolds (stainless steel) use four into one equal-length runners which both work and look good.
2020 Chevrolet Corvette C8 Stingray LT2 Engine
2020 Chevrolet Corvette C8 Stingray Transmission
Designated M1L, the 2020 Corvette C8 features an 8-speed dual clutch automatic transmission and is an entirely new design. Advantages include extremely fast shift times of under 100 msec., the ability to maintain torque to the rear wheels even during a shift and better reliability.

Stick Shift?

Manual transmission popularity has been on the decline, mostly because the performance advantages had disappeared to the point where automatic transmissions had significantly better numbers. As of 2018, the manual transmission had only 22% of the Corvette market compared to 90% in 1967.

Considering the expense of developing a C8 manual transmission, accessing three pedals by the driver is in the Corvette past.

2020 Chevrolet Corvette C8 LT2 Engine 2020 Chevrolet Corvette C8 LT2 Engine

The Corvette C8 LT2 engine displaces 6.2 Liters (374.92 cubic inches). Additional engine specifications can be found here.

The LT2 engine in the 2020 Corvette C8 is a cousin of the 265 cubic inch V8 first installed in the 1955 Corvette. The 1955 mill was known and loved as the small block Chevrolet or "SBC". Over 100,000,000 have been produced over the years. Although much has changed (the original was cast iron, the current LT2 is aluminum) many of the basic parameters, such as camshaft location, is the same. Features such as low cost and compact design has enabled the basic design to endure.

2020 Chevrolet Corvette C8 LT2 Engine 2020 Chevrolet Corvette C8 LT2 Engine

2020 Chevrolet Corvette C8 M1L Transmission 2020 Chevrolet Corvette C8 M1L Transmission

The 2020 Corvette C8 transmission is a M1L 8-speed DCT unit developed with Tremec. DCT stands for Dual Clutch Transmission which refers to the two clutches - one for odd gears, the other for even gears. There is no torque convertor.

The 2020 Corvette C8 has been able to claim some truly impressive acceleration times: 2.9 seconds 0 - 60 mph and 11.2 seconds to cover the ¼ mile (GM supplied stats). This is almost a second quicker than the previous C7 was able to achieve although the C7 had slightly fewer ponies to work with. Some of the other difference can be attributed to the gears; the C7 (both manual and automatic) had decidedly taller ratios, an attempt to achieve good fuel economy.

The other advantage for the 2020 8-speed DCT involves shift times which are under 100 milliseconds. There is no way even a trained performance driver can beat these times and the state of the art is now such that even tiny bits count. We've come a long way since celebrating the introduction of the four speed manual in the 1957 Corvette.

2020 Chevrolet Corvette C8 M1L Transmission 2020 Chevrolet Corvette C8 M1L Transmission

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Comments (3)

(Beavercreek Twp., Ohio, US)says...


Corvette Story Webmaster(California, US)says...

Hi Felippe:

Thank you for your comment, but I will disagree. Corvettes typically have not had a real mid-front configuration.

I to am disappointed at the lack of a manual transmission but there is some justification. Also, they were never practical and are being made with traditional Corvette materials.


Felippe(São Paulo, São Paulo, Brazil)says...

It always was mid engine, never heard about mid-front? Until 2019 it was too 50-50, and now is 40-60.

I really can't see the advantage: Don't drive as a Corvette anymore, don't looks like a Corvette, don't have the practicality of a Corvette, don't use the materials of a Corvette, don't have stick shift like every single Corvette and in the Z06 version don't even sounds like a Corvette anymore.

What is this? a Ferrari 458 replica that GM made and named a "Corvette"? This is just a mistake.

2023 Corvette
C8 Z06

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