LY6 6.0L engine: specs, donor vehicles & swap notes
| Spec | Value |
|---|---|
| RPO | LY6 |
| Family | Generation IV |
| Years | 2007–2013 |
| Displacement | 6.0 L / 364 ci |
| Horsepower | 361 hp |
| Torque | 385 lb-ft |
| Bore × stroke | 4.0 × 3.622 in |
| Compression | 9.60:1 |
| Block | iron |
| AFM/DOD | No |
Iron/Alum. heads, VVT. Uses L92/LS3-style rectangle-port heads (no sodium exhaust valves)
Specs from secondary sources; GM ratings varied by year and vehicle.
Donor vehicles with the LY6
Where to find one at the junkyard. Confirm with the RPO sticker in the glovebox or the 8th VIN digit.
| Vehicle | Years |
|---|---|
| Chevrolet Express/GMC Savana 2500/3500/4500 | 2008–2009 |
| Chevrolet Silverado 2500HD/3500HD | 2007–2009 |
| Chevrolet Suburban 2500 | 2007–2013 |
| GMC Sierra 2500HD/3500HD | 2007–2009 |
| GMC Yukon XL 2500 | 2007–2013 |
Next steps
- Find a cam for the LY6
- Compare every LS donor engine
- Size injectors and fuel pump
- Swap guides by vehicle
Questions about the LY6
Sources