Who Makes The LS4 V8 Engine & How Much Horsepower Does It Produce?

the ls4 v8 engine

General Motors' LS engines have been driving GM cars and trucks since the first LS-powered Corvette rolled off the lot in 1997. Since then, the engine lineup has achieved legendary status in the world of gearheads and auto lovers. LS motors are popular choices for engine swaps around the globe, and enthusiasts have been said to stuff LS engines into everything from tiny Miatas to even boats and airplanes.

Like the rest of its siblings, the LS4 engine is built by General Motors for its various brands, including Pontiac, Chevrolet, and Buick. While it's not the most powerful LS engine to ever roll off the GM production floor, it is unique due to its transverse construction designed for front-wheel-drive vehicles and its aluminum block. As it's built exclusively for use in front-wheel-drive cars, the LS4 motor is not an exceptionally popular choice for engine swaps. However, if you're planning a one-of-a-kind build using a sports car base, and you want to insert a little American muscle under the hood, the LS4 could be a phenomenal choice with lots of potential. Let's dive in and check out the LS4 motor in greater detail, including what kind of power it produces, and how much it costs to get your hands on one.

Where Can You Buy An LS4 Engine?

2006 chevy impala ss

As mentioned, all generations of the LS engine line are produced by General Motors. The LS4 engine was originally released in 2005 and was used in GM vehicles until the company phased it out in 2009. In its stock form, the LS4 motor is capable of producing a modest 303 horsepower and 323 pound-feet of torque. General Motors built the engine into several of its front-wheel-drive vehicles, including the Chevy Monte Carlo SS, Chevy Impala SS, Pontiac Grand Prix GXP, and the Buick LaCrosse Super.

Though the LS4 engine was discontinued in 2009, like many other GM engines it remains available through independent sellers. It might not be as desirable as other crate motors, due to its transverse orientation limiting its use to front-wheel-drive cars, but that doesn't mean you can't find one. According to our research, tuners and gearheads can snag one of these rare engines for around $1,000. That said, you'll have to search various websites, and you may have to settle for a rebuilt or used engine instead of a factory-new crate motor.

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