Specifications
The 6.0 LS engine is a robust and highly versatile V8, OHV pushrod powerplant with a 6.0-liter (364 cubic inch) displacement, designed to deliver strong performance and long-term reliability. It features a cast-iron or aluminum engine block (depending on the specific variant) paired with aluminum cylinder heads using a two-valve-per-cylinder layout for efficient airflow. With a 4.00-inch bore and 3.62-inch stroke, the engine offers an ideal balance of torque and rev capability, while compression ratios typically ranging from 9.4:1 to 10.7:1 support both daily driving and performance tuning.
The 6.0 LS engine uses electronic fuel injection, a coil-near-plug ignition system, and hydraulic roller lifters to ensure smooth operation and dependable power delivery. From the factory, output generally ranges between 300 and 400+ horsepower with 360–420 lb-ft of torque, making it well-suited for towing, street performance, and engine swap projects. Widely used in GM trucks, SUVs, and performance vehicles, the 6.0L LS engine is prized for its durability, strong low-end torque, and extensive aftermarket support.
Model Compatibility
Corvettes (C6)
The C6 Corvette used the 6.0L LS2 V8 engine with a full aluminum block and heads, producing approximately 400 horsepower and 400 lb-ft of torque. Paired with either a 6-speed manual or automatic transmission, it featured a 10.9:1 compression ratio, electronic fuel injection, and rear-wheel drive, delivering strong acceleration and balanced performance for a true sports-car experience.
Camaros
In Camaro performance applications, the 6.0L LS engine (LS2/LS-based variants) generated around 395–400 horsepower and up to 410 lb-ft of torque. It utilized an aluminum block, hydraulic roller camshaft, and coil-near-plug ignition, supporting both manual and automatic transmissions while offering excellent aftermarket tuning potential and muscle-car performance.
Cadillac CTS-Vs
The Cadillac CTS-V was powered by the 6.0L LS2 V8, producing 400 horsepower and 395 lb-ft of torque, combined with a 6-speed manual transmission and rear-wheel drive. Featuring an aluminum block, 10.9:1 compression ratio, and performance-tuned suspension, it blended luxury comfort with high-performance sedan capability.
Chevy Silverados
Chevy Silverado trucks commonly used the 6.0L Vortec LS-based engine, delivering 300–360 horsepower and 360–380 lb-ft of torque, depending on the year and tune. Built with a cast-iron block for durability, it was optimized for towing and heavy-duty work, paired with automatic transmissions, and widely known for reliability and long service life.
Frequently Asked Questions
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Is the 6.0 LS Engine a direct replacement for my Silverado or Sierra?
Yes, it’s a direct OEM-fit replacement for compatible GM trucks and SUVs from 1999–2019.
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Are these 6.0 LS Engines used or rebuilt?
Most units are tested used OEM engines; rebuilt options may also be available depending on inventory.
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What’s the horsepower range for the 6.0 LS Engine?
Output varies from 300 to over 400 horsepower, depending on the variant (LQ4, LS2, L76, etc.).
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Does the engine come with a warranty?
Yes, all engines are tested and backed by a limited warranty for quality assurance.
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Can the 6.0 LS Engine be used for performance swaps?
Absolutely—its strong block and wide aftermarket support make it ideal for LS swap projects.
6.0 LS Engine
