L76 5.7L engine: specs, donor vehicles & swap notes
The L76 is a 5.7 L Generation VI engine built 2027-present, rated 402 hp. It came in 1 vehicle application, including Chevrolet Silverado/GMC Sierra 1500.
| Spec | Value |
|---|---|
| RPO | L76 |
| Family | Generation VI |
| Years | 2027-present |
| Displacement | 5.7 L / 346 ci |
| Horsepower | 402 hp |
| Torque | 428 lb-ft |
| Bore × stroke | 3.78 × 3.858 in |
| Compression | Not yet published |
| AFM/DOD | No |
Specs from secondary sources; GM ratings varied by year and vehicle.
Donor vehicles with the L76
Where to find one at the junkyard. Confirm with the RPO sticker in the glovebox or the 8th VIN digit.
| Vehicle | Years |
|---|---|
| Chevrolet Silverado/GMC Sierra 1500 | 2027–present |
Next steps
- Plan a swap with the L76
- Find a cam for the L76
- What the L76 tune needs
- Compare every LS donor engine
- Size injectors and fuel pump
- Swap guides by vehicle
Sources