LS3 6.2L Engine Forsale:

Complete Guide, Specifications, Performance & Buying Information

Introduction

The LS3 6.2L Engine Forsale is one of General Motors’ most respected and sought-after V8 engines. Known for its outstanding reliability, impressive horsepower, and massive aftermarket support, the 6.2L LS3 has become the preferred choice for performance enthusiasts, race teams, restoration projects, and engine swap builders worldwide.

Originally introduced in 2008, the LS3 quickly earned a reputation as one of the best naturally aspirated V8 engines ever produced by General Motors. Its combination of factory reliability, excellent airflow, and exceptional power potential makes it a top-selling engine in the performance market.

LS3 Engine Specifications

Specification	Details
Engine Code	LS3
Manufacturer	General Motors (GM)
Engine Family	Gen IV Small Block
Displacement	6.2L (376 Cubic Inches)
Configuration	V8 OHV
Fuel System	Sequential Electronic Fuel Injection
Aspiration	Naturally Aspirated
Block Material	Aluminum
Cylinder Head Material	Aluminum
Bore	4.065 in (103.25 mm)
Stroke	3.622 in (92 mm)
Compression Ratio	10.7:1
Horsepower	430–436 HP
Torque	424–428 lb-ft
Max RPM	6,600 RPM
Valve Configuration	2 Valves Per Cylinder
Production Years	2008–2017

LS3 6.2L Engine Forsale Horsepower and Torque

The factory LS3 produces between 430 and 436 horsepower and up to 428 lb-ft of torque depending on the application and exhaust configuration. These impressive figures make it one of the strongest naturally aspirated V8 engines GM has ever produced.

Factory Power Output

• Horsepower: 430–436 HP
• Torque: 424–428 lb-ft
• Peak Horsepower: 5,900–6,000 RPM
• Peak Torque: 4,600 RPM

What Makes the LS3 Special?

Large Rectangular-Port Cylinder Heads

One of the LS3’s biggest advantages is its high-flow rectangular-port cylinder heads. These heads significantly improve airflow compared to previous LS engines and contribute to the engine’s excellent power production.

Aluminum Construction

The aluminum block and cylinder heads reduce overall engine weight while maintaining durability, making the LS3 ideal for performance applications and engine swaps.

Massive Aftermarket Support

The LS3 benefits from one of the largest performance aftermarket ecosystems in the world. Upgrades include:

• Performance camshafts
• Supercharger kits
• Turbocharger systems
• Forged internals
• High-flow intake manifolds
• Performance cylinder heads
• Standalone ECU systems

Vehicles Equipped with the LS3 Engine

The LS3 was factory-installed in several iconic GM performance vehicles:

Chevrolet Corvette C6

• 2008–2013 Corvette

Chevrolet Camaro SS

• 2010–2015 Camaro SS

Chevrolet SS Sedan

• 2014–2017 Chevrolet SS

Holden Commodore Performance Models

• HSV and Holden performance variants

These applications helped establish the LS3 as one of the most desirable V8 engines in automotive history.

LS3 Engine Swap Benefits

The LS3 has become one of the most popular engine swap platforms due to:

• Compact engine dimensions
• Excellent reliability
• Affordable replacement parts
• Strong aftermarket support
• Easy tuning potential
• High horsepower capability

Popular swap projects include:

• Nissan Skyline
• Toyota Supra
• Mazda RX-7
• Chevrolet C10
• Ford Mustang
• Classic Camaro
• Jeep Wrangler
• Land Cruiser builds

LS3 Performance Potential

A stock LS3 can comfortably support significant horsepower gains with basic modifications.

Common Upgrade Levels

Modification Stage	Estimated Power
Stock Engine	430–436 HP
Intake + Headers + Tune	470–500 HP
Camshaft Package	520–600 HP
Supercharged Setup	650–900+ HP
Forged Turbo Build	1,000+ HP

Many enthusiasts choose the LS3 because it responds exceptionally well to bolt-on modifications and forced induction upgrades.

LS3 Reliability

The LS3 is widely regarded as one of GM’s most reliable performance engines.

Key Reliability Features

• Proven Gen IV architecture
• Strong aluminum block
• Durable hydraulic roller camshaft
• Excellent oiling system
• High-quality factory internals
• Efficient cooling design

With proper maintenance, LS3 engines commonly exceed 200,000 miles while maintaining strong performance.

Why Buy an LS3 Engine?

Whether you’re building a race car, muscle car, drift car, street machine, or off-road project, the LS3 offers:

✓ Excellent horsepower

✓ Proven reliability

✓ Lightweight aluminum construction

✓ Huge aftermarket support

✓ Strong resale value

✓ Easy engine swap compatibility

✓ Exceptional tuning potential

Buy Quality LS3 Engines from Forged & Stocked Engines

At Forged & Stocked Engines, we supply quality-tested performance engines, transmissions, half cuts, and powertrain solutions for customers worldwide. Our experienced team can help source complete LS3 engine packages for performance builds, restorations, and custom projects.

Contact us today to learn more about available LS3 engines, shipping options, and complete swap packages.

Email: forgedandstockedengine@gmail.com

Website: https://forgedandstockedengines.com

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