LC9 engine Price range: $2,500.00 through $5,000.00Select options
LC9 engine
The GM LC9 engine is a 5.3L Vortec V8 from the LS family, designed with an aluminum block, Active Fuel Management (AFM), and Variable Valve Timing (VVT) for improved efficiency and performance. Featuring Gen IV small-block architecture, it delivers strong torque, smooth operation, and lighter weight compared to iron-block variants. Commonly used in GM trucks and SUVs, the LC9 offers an excellent balance of power and fuel economy. It’s a popular replacement engine for Silverado, Sierra, Tahoe, Suburban, and Yukon models needing reliable V8 performance.
In Stock
$2,500.00 – $5,000.00Price range: $2,500.00 through $5,000.00
The prices are exclusive of taxes and shipping. The price may vary depending upon the miles and year of manufacturing.
SKU: GM-LC9
Category: Used Engine
Tags: 5.3 Vortec engine, AFM V8 engine, aluminum block V8, Chevy Silverado Engine, GM LC9 engine, GM truck engine, GMC Sierra 5.3 engine, LC9 5.3 motor, LC9 replacement motor, VVT 5.3 engine
Brand: General Motors
Additional Information
| Brand | General Motors |
|---|---|
| Conditions | Remanufactured, Used |
| Miles | 70000-130000 |
| Year Compatibility | 2007–2013 |
| Verified | Tried & Tested |
| Warranty | Up to 3 Months |
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Specifications
The GM Vortec 5.3L LC9 engine is a Gen IV aluminum-block V8 engine designed for full-size trucks and SUVs, produced from 2007–2011 (with some applications extending to 2014). Known for its balance of power, efficiency, and lightweight construction, the LC9 delivers 315–326 horsepower and 335–348 lb-ft of torque, making it a versatile choice for both daily driving and performance builds. It features Active Fuel Management (AFM) for improved fuel economy, Variable Valve Timing (VVT) on 2010+ models for broader torque and efficiency, and Flex Fuel capability for E85 compatibility.
Equipped with 799/243 aluminum cylinder heads and weighing approximately 390 lbs, the LC9 is a popular option for engine swaps, offering modern GM technology, strong aftermarket support, and reliable V8 performance in a compact, aluminum package. The LC9 engine has become a favorite choice for engine swaps in classic GM vehicles, thanks to its lightweight aluminum design. It works well with most vehicles that can accommodate Gen IV LS-series engines.
Compatible Models
The GMC Yukon XL 1500 (2007–2014)
This uses the LC9 V8 to deliver strong 315–326 hp and 335–348 lb-ft of torque, providing excellent towing capacity and smooth performance for full-size SUV applications. Its Active Fuel Management (AFM) helps improve fuel efficiency, while the lightweight aluminum design ensures reliable V8 power without excessive weight.
The Chevrolet Avalanche (2007–2013)
This combines the LC9 engine’s versatile torque with a truck/SUV hybrid design, offering dependable daily performance, solid hauling capabilities, and Flex Fuel compatibility for E85. Its VVT-equipped models (2010+) enjoy broader torque range and enhanced efficiency.
Chevrolet Tahoe (2009–2014)
It pairs the LC9’s strong V8 output with a full-size SUV platform, optimizing highway cruising, city driving comfort, and towing. With 799/243 aluminum cylinder heads and AFM, it balances power and fuel economy effectively.
GMC Yukon (2009–2014)
It leverages the LC9’s lightweight aluminum V8 to provide robust performance, reliable towing, and modern fuel-saving features. Variable Valve Timing (VVT) on later models enhances torque and efficiency, making it a capable and versatile full-size SUV engine option.
Frequently Asked Questions
What vehicles use the GM LC9 engine?
The GM LC9 engine is found in Silverado, Sierra, Tahoe, Suburban, Yukon, and other GM trucks/SUVs.
Is the GM LC9 engine the same as other 5.3 Vortec engines?
It’s similar but features an aluminum block with AFM and VVT, making it lighter and more efficient.
What does AFM mean on the GM LC9 engine?
Active Fuel Management deactivates cylinders during light loads to improve fuel economy.
Is the GM LC9 engine reliable?
Yes, it’s durable, but AFM components and lifters should be properly maintained.
Can AFM be deleted on the GM LC9 engine?
Yes, some owners choose AFM delete kits for performance and long-term reliability.
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