The new LT6 also turned out to be the most powerful naturally aspirated V-8 in a production car, ever! Fun fact: The 5.5-liter LT6 is 1 kg heavier than the LT2 but manages to make 175 more hp.

The 2023 Chevrolet Corvette Z06 is powered by the 5.5-liter LT6 engine, the highest horsepower, naturally-aspirated production V8 to hit the market.

The LT7 has a number of unique parts, but it also shares a few with the Corvette Z06's LT6 V-8. The 2025 Chevy Corvette ZR1's LT7 V-8 is more than just a Corvette Z06 engine, or LT6, with two turbos.

Four basic engines in various forms have powered the Chevrolet Corvette across its nearly 70-year history. This is the fifth, and by far the most radical, the LT6. Or, as it's called internally ...

The naturally aspirated 5.5 V8 LT6 gasoline engine in the 2023 Corvette Z06 requires a 500-mile break-in period, during which the redline is much lower.

We take a deep engineering look at what could be the most advanced engine ever produced by Chevrolet, the new DOHC 5.5-liter LT6; it revs to 8,600 rpm, churns out 670 hp, and will power the new ...

The flat-plane crankshaft V8 in the Z06 also happens to be a midship-only design compatible only with the TR-9080 DCT mentioned a little earlier, which makes the LT6 crate engine pretty nonsensical.

The LT6.R consequently has its rev limiter set to around 7000 rpm—there's no real need to go further seeking power that would only be dialed back. For reference, the LT6 road engine peaks at 670 ...

Chevrolet released details on the DOHC 5.5L LT6 engine that will power the new 2023 Corvette Z06. It revs to 8,600 rpm, churns out 670 hp, is stuffed with innovative tech, and will power the new ...

The LT6 also features a full racing-style dry-sump oiling system with individual crank bay scavenging. What characterizes the Z06's engine is its lightweight, low-inertia rotating assembly, as ...

GM has considered offering a 5.5L V8 LT6 crate engine, but with demand for the 2023 Corvette Z06 already extremely high, a concrete decision has yet to be made.