LS3 6.2L Chevy V8 Engine

What This Engine Is

The LS3 6.2L Chevy V8 is a high-performance small-block engine from GM, known for its reliability, strong horsepower, and versatility. Originally used in Corvettes and Camaro SS models, this engine is a popular choice for performance builds, engine swaps, and street or track applications.

Engine Overview

The LS3 features an aluminum block and heads for reduced weight while maintaining strength. Its 90-degree V8 layout and modern LS design make it compact, powerful, and easy to fit into a wide range of vehicles.

Key engine features include:

• 6.2 liter displacement or 376 cubic inches

• Aluminum block and cylinder heads

• 90-degree naturally aspirated V8

• High-flow intake and cylinder heads for strong performance

Performance and Power

The LS3 delivers smooth, responsive power across the RPM range, making it ideal for street, track, and swap applications.

Typical output includes:

• Approximately 430–436 horsepower

• Approximately 424–428 lb-ft of torque

Valvetrain and Fuel System

The engine uses a pushrod valvetrain with two valves per cylinder and electronic fuel injection. This setup ensures reliable power delivery, smooth idle, and modern drivability while keeping maintenance straightforward.

Ideal Applications

The LS3 is perfect for:

• Corvette or Camaro replacements

• Muscle car upgrades and restomods

• Engine swaps into street and performance vehicles

• Track-focused performance builds

Why Choose the LS3 Engine

The LS3 6.2L Chevy V8 offers factory-engineered performance, proven reliability, and strong aftermarket support. It is an excellent choice for builders seeking a ready-to-run high-performance engine that balances power, durability, and drivability.