Crate Engine LS3 6.2L 495 HP Long-Block

The Chevrolet Performance Crate Engine LS3 6.2L 495 HP Long-Block is the ultimate powertrain solution for serious engine swaps, custom builds, and high-performance restorations. Engineered by Chevrolet's factory performance division, this long-block assembly delivers genuine 495 horsepower and is designed for builders and enthusiasts who demand authentic GM performance without compromise.

The LS3 long-block features a 6.2-liter displacement, a cast-iron block, aluminum cylinder heads, and a hydraulic roller camshaft, providing a solid foundation for reliable performance across a wide RPM range. Its efficient combustion chamber design and robust bottom-end construction make it capable of handling aggressive tuning and forced induction upgrades.

Ideal for upgrading classic muscle cars or building modern hot rods, the LS3 long-block is compatible with a variety of vehicle platforms. This configuration arrives fully assembled but excludes the intake manifold, exhaust manifolds, ignition, and fuel delivery systems, allowing builders the freedom to customize their setups.