GM has made many small-block engines over the decades, but few compare to the value and quality of an LS3. Buying a used LS3 engine is a smart way to enjoy the high performance of a GM small-block without having to pay a fortune. The LS3 was introduced in 2008 and is the base engine for Corvettes. It marks a significant improvement over the previous generation of LS2 engines, offering an impressive 430 horsepower at 5900 RPM and 424 lbs. per foot of torque at 4600 rpm. The LS3 also casts a larger bore at 4.06 inches, with a 6162cc displacement and a 10.7:1 compression ratio. The LS3 is a common engine that appears in numerous models, including Chevrolet SS models, Camaros, Corvettes, and other vehicles. Some LS3 engines come with an optional dual-mode exhaust package that has a bypass on acceleration. This special exhaust system utilizes vacuum-actuated outlet valves, which help limit engine noise during low-load engine performance while opening for maximum performance when the engine is at its optimal output. The system boosts the engines power to 436 horsepower and 428 lbs. per foot of torque, giving you even more power to tear through as you hit the road. Find a used LS3 engine that suits your needs by browsing the vast inventory available on eBay.
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