LS6 6.7L engine: specs, donor vehicles & swap notes
The LS6 is a 6.7 L aluminum-block Generation VI engine built 2027–present, rated 535 hp. It came in 1 vehicle application, including Chevrolet Corvette C8. Things to know: it has AFM, so an aftermarket cam means a full AFM delete; it has variable valve timing.
| Spec | Value |
|---|---|
| RPO | LS6 |
| Family | Generation VI |
| Years | 2027–present |
| Displacement | 6.7 L / 409 ci |
| Horsepower | 535 hp |
| Torque | 520 lb-ft |
| Bore × stroke | 4.065 × 3.937 in |
| Compression | 13.00:1 |
| Block | aluminum |
| AFM/DOD | Yes |
Aluminum, VVT, AFM, hybrid port/direct injection, dry sump
Specs from secondary sources; GM ratings varied by year and vehicle.
Donor vehicles with the LS6
Where to find one at the junkyard. Confirm with the RPO sticker in the glovebox or the 8th VIN digit.
| Vehicle | Years |
|---|---|
| Chevrolet Corvette C8 | 2027–present |
Next steps
- Plan a swap with the LS6
- Find a cam for the LS6
- What the LS6 tune needs
- Compare every LS donor engine
- Size injectors and fuel pump
- Swap guides by vehicle
Questions about the LS6
- Truck intake vs LS6 intake
- Will an LS6 valley cover or a catch can stop my LS from drinking oil through the PCV?
- ARP head bolts on an LS6: do they eliminate the GM stretch procedure, and can heads come off with studs in the car?
- Truck intake vs LS1/LS6 intake for a budget swap: which is shorter and which makes more power?
Sources