LC9 5.3L engine: specs, donor vehicles & swap notes
| Spec | Value |
|---|---|
| RPO | LC9 |
| Family | Generation IV |
| Years | 2007–2014 |
| Displacement | 5.3 L / 325 ci |
| Horsepower | 315–320 hp |
| Torque | 335 lb-ft |
| Bore × stroke | 3.78 × 3.622 in |
| Compression | 9.60:1 or 9.95:1 |
| Block | aluminum |
| AFM/DOD | Yes |
| VIN 8th digit | 3 |
Aluminum, AFM, VVT*, E85-capable
Specs from secondary sources; GM ratings varied by year and vehicle.
Donor vehicles with the LC9
Where to find one at the junkyard. Confirm with the RPO sticker in the glovebox or the 8th VIN digit.
| Vehicle | Years |
|---|---|
| Chevrolet Avalanche | 2007–2013 |
| Chevrolet Silverado 1500 | 2007–2013 |
| Chevrolet Suburban 1/2 ton | 2007–2014 |
| GMC Sierra 1500 | 2007–2013 |
| GMC Yukon XL 1/2 ton | 2007–2014 |
Next steps
- Find a cam for the LC9
- Compare every LS donor engine
- Size injectors and fuel pump
- Swap guides by vehicle
Sources