LS3 6.2L engine: specs, donor vehicles & swap notes
| Spec | Value |
|---|---|
| RPO | LS3 |
| Family | Generation IV |
| Years | 2008–2017 |
| Displacement | 6.2 L / 376 ci |
| Horsepower | 425–436 hp |
| Torque | 424–428 lb-ft |
| Bore × stroke | 4.065 × 3.622 in |
| Compression | 10.70:1 |
| Block | aluminum |
| AFM/DOD | No |
Aluminum, sodium exhaust valves. L92-sourced heads, cam with 14 mm lift, 6 mm offset intake rockers, high-flow intake, 47 lb/hr injectors; L76/L92/LS3 heads use 55 mm intake / 1.59 in exhaust valves
Specs from secondary sources; GM ratings varied by year and vehicle.
Donor vehicles with the LS3
Where to find one at the junkyard. Confirm with the RPO sticker in the glovebox or the 8th VIN digit.
| Vehicle | Years |
|---|---|
| AC 378 GT Zagato | 2012 |
| Arrinera Hussarya 33 | 2016 |
| Bolwell Nagari 500 | 2019 |
| Chevrolet Camaro SS (manual only) | 2010–2015 |
| Chevrolet Corvette | 2008–2013 |
| Chevrolet SS | 2014–2017 |
| HSV E Series | 2008–2013 |
| Holden VF II Commodore | 2015–2017 |
| Holden WN II Caprice | 2015–2017 |
| Holden vehicles including: | 2008–2017 |
| Pontiac G8 GXP | 2009 |
| SIN R1 450 | 2015 |
| Vauxhall VXR8 | 2009–2017 |
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Next steps
- Find a cam for the LS3
- Compare every LS donor engine
- Size injectors and fuel pump
- Swap guides by vehicle
Questions about the LS3
- LS1 vs LS3: what's the difference?
- Will LS1 headers fit a 5.3, 6.0 or LS3?
- Best cam for an LS3?
- What vehicles came with the LS3?
Sources