## What Car Is the LS Engine From?
The **LS engine** is a **General Motors** (GM) V8 engine family that was first introduced in 1997. The LS engines are based on the **GM small block** V8 engine, but they feature a number of significant improvements, including:
* **Aluminum block and heads:** This makes the LS engines lighter and more compact than the small block engines.
* **Revised combustion chambers:** This helps to improve fuel efficiency and power.
* **Improved oiling system:** This helps to reduce wear and tear on the engine.
The LS engines have been used in a wide variety of GM vehicles, including:
* **Chevrolet Camaro**
* **Chevrolet Corvette**
* **Chevrolet Silverado**
* **Chevrolet Tahoe**
* **GMC Sierra**
* **GMC Yukon**
* **Hummer H2**
* **Pontiac GTO**
* **Saturn Aura**
The LS engines are also popular among **hot rodders and tuners**, as they offer a good balance of power, reliability, and affordability.
Which Cars Have the LS Engine?
Most GM vehicles produced from 1997 to 2013 used the LS engine. This includes:
– Chevrolet Camaro
– Chevrolet Corvette
– Chevrolet Silverado
– Chevrolet Tahoe
– GMC Sierra
– GMC Yukon
– Hummer H2
– Pontiac GTO
– Saturn Aura
What is the History of the LS Engine?
The LS family descended from GM’s previous line of “small block” V-8 engines. Introduced in 1955, the small block was an OHV design renowned for its compact size and good power output. Engineers constantly updated the small block over its lifespan, with the final version called the “LT” engine. The LS engine was a clean-sheet design, not based on the LT engine.
What Are the Different Generations of LS Engines?
There are four generations of LS engines:
– **Gen I:** Introduced in 1997, the Gen I LS engines were the first to use the aluminum block and heads. They were also the smallest of the LS engines, with a displacement of 4.8 liters.
– **Gen II:** Introduced in 2005, the Gen II LS engines featured a number of improvements, including revised combustion chambers, a more efficient oiling system, and a new camshaft design. They were also larger than the Gen I engines, with a displacement of 5.3 liters.
– **Gen III:** Introduced in 2007, the Gen III LS engines featured a number of additional improvements, including variable valve timing and a more efficient intake manifold. They were also the first LS engines to be offered with a direct injection fuel system.
– **Gen IV:** Introduced in 2014, the Gen IV LS engines featured a number of significant changes, including the use of a new aluminum block and heads, a new camshaft design, and a new intake manifold. They were also the first LS engines to be offered with a stop-start system.
What Are the Advantages of the LS Engine?
The LS engines offer a number of advantages over other V8 engines, including:
* **Power:** The LS engines are powerful, with even the smallest engine producing over 300 horsepower.
* **Fuel efficiency:** The LS engines are fuel efficient, with some models achieving over 25 mpg on the highway.
* **Reliability:** The LS engines are reliable, with many lasting over 200,000 miles.
* **Affordability:** The LS engines are affordable, with many used engines available for under $2,000.
What Are the Disadvantages of the LS Engine?
Despite their many advantages, the LS engines also have some disadvantages, including:
* **Weight:** The LS engines are heavier than some other V8 engines.
* **Size:** The LS engines are larger than some other V8 engines, which can make them difficult to fit into some vehicles.
* **Complexity:** The LS engines are more complex than some other V8 engines, which can make them more difficult to maintain.
Overall, the LS engines are a good choice for anyone looking for a powerful, fuel-efficient, and reliable V8 engine. They are also affordable and easy to find, making them a great option for hot rodders and tuners.
