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GM 5.3 Vortec Engine

The 5.3 Vortec Engine is a reliable V8 powerhouse designed for Chevy and GMC trucks and SUVs (1999–2019). Known for its balance of performance and efficiency, it delivers 285–355 horsepower and exceptional towing strength. Found in models like the Silverado, Sierra, Suburban, and Tahoe, the 5.3L Vortec ensures smooth operation and durability under load. Each used 5.3 Vortec engine is compression-tested, inspected, and guaranteed for OEM fitment. Perfect for rebuilds or replacements, backed by warranty for lasting peace of mind.

23 in stock

Price range: $1,200.00 through $2,800.00

The prices are exclusive of taxes and shipping. The price may vary depending upon the miles and year of manufacturing.

Additional Information

Brand

General Motors

Conditions

Remanufactured, Used

Miles

70000-130000

Year Compatibility

1999-2025

Verified

Tried & Tested

Warranty

Up to 3 Months

What we offer

Specifications

The 5.3 Vortec engine is a durable and widely used small-block GM V8, commonly found in Chevrolet and GMC trucks, SUVs, and vans from the late 1990s through the 2010s. Early versions, such as the LM7 and L59, feature a cast-iron block, while later variants like the LH6, LY5, and LC9 use an aluminum block for reduced weight. The engine has a 5.3-liter (325 cubic inch) displacement, a 3.78-inch bore, 3.62-inch stroke, and typically runs a 9.5:1 to 10.0:1 compression ratio, depending on the model year. 

It uses an OHV 2-valve valvetrain with hydraulic roller lifters, sequential fuel injection, and coil-near-plug ignition. Power output generally ranges from 270 to 355 horsepower with 315 to 383 lb-ft of torque, making it well-known for strong low-end torque, towing capability, fuel efficiency, and long-term reliability —one of the key reasons the 5.3L Vortec remains a popular choice for daily driving, work trucks, and engine swaps.


Compatible Models

Chevrolet Tahoe

The Chevrolet Tahoe equipped with the 5.7L Vortec (L31) benefits from strong low-end torque and proven reliability, making it well-suited for towing boats, trailers, and family hauling. This engine delivers smooth power for daily driving while maintaining durability for long-term ownership, especially in late-1990s Tahoe models. 

Chevrolet Suburban

In the Chevrolet Suburban, the 5.7L Vortec provides dependable performance for heavy loads and long-distance travel. Its robust torque output and simple mechanical design make it a trusted choice for large families, fleet use, and towing applications, offering a balance of power and longevity. 

Chevrolet Silverado

The 5.7L Vortec in the Chevrolet Silverado is known for its work-ready nature, delivering strong pulling power and consistent performance under load. Popular in half-ton truck configurations, this engine excels in hauling, towing, and job-site use while remaining easy to maintain. 

GMC Sierra

GMC Sierra models powered by the 5.7L Vortec share the same proven strength and reliability as their Chevrolet counterparts. Designed for demanding truck duty, the L31 offers excellent low-RPM torque and durability, making it ideal for towing, work applications, and everyday driving.  


Frequently Asked Questions

  1. What vehicles use the 5.3 Vortec Engine?

    The 5.3L Vortec powers Chevy Silverado, Tahoe, Suburban, and GMC Sierra, Yukon, and other GM trucks/SUVs from 1999–2019.

  2. How much horsepower does the 5.3 Vortec produce?

    Depending on generation, it produces 285–355 horsepower with strong low-end torque.

  3. Is this a used or rebuilt 5.3 Vortec engine?

    Each listing features a tested used OEM 5.3 Vortec engine, inspected for compression, leaks, and internal wear.

  4. Is the 5.3 Vortec good for towing?

    Yes, it’s one of GM’s most dependable engines for towing and hauling applications.

  5. Does it come with a warranty?

    All units include a limited parts warranty, ensuring reliability and peace of mind.

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GM 5.3 Vortec Engine-1GM 5.3 Vortec Engine
Price range: $1,200.00 through $2,800.00Select options