LS GM 5.3 LMG 2007/14 CAST IRON LONG ENGINE- 177/178/779 BLOCK-799/243 CATHERDAL HEADS
The LMG engine is a 5.3L Gen. IV iron-block engine used in GM trucks and SUVs between 2007 and 2014. For marketing purposes, it was also known as the Vortec 5300. The information listed here is for a stock LMG engine.
These motors are capable of making a lot of horsepower, and respond well to upgrades like turbos, superchargers, high-flow cylinder heads, intake systems, cams, and nitrous oxide.
| Engine Ratings | |
|---|---|
| Compression Ratio (2007-09) | 9.9:1 |
| Compression Ratio (2010-14) | 9.6:1 |
| Horsepower Rating | 310-326 hp |
| Torque Rating | 335-348 ft./lbs. |













