LSX376-B15 Crate Engine 473HP

The Chevrolet Performance LSX376-B15 Crate Engine delivers 473 horsepower in a complete, bolt-in package designed for high-performance applications requiring proven LS-series architecture. This 376 cubic inch displacement engine represents a turnkey solution for builders and operators who demand reliable, consistent power output without the development time or uncertainty of custom engine builds. The LSX376-B15 comes fully assembled and dyno-tested, eliminating variables that plague field installations and enabling rapid deployment in vehicles where performance matters.

The 376 cubic inch displacement paired with 473 horsepower output reflects optimized combustion chamber design and fuel efficiency characteristic of the LS engine family. At 500 pounds, the LSX376-B15 maintains the compact footprint that makes LS engines adaptable across diverse vehicle platforms—from classic car restorations to modern performance builds. The engine's dimensions (37.62 x 36.62 x 42 inches) facilitate installation in tight engine bays while preserving serviceability. GM's proven LS-series architecture ensures parts availability, technical documentation, and support infrastructure that independent engine builders cannot match.

This crate engine serves builders tackling high-performance vehicle projects where reliability and horsepower density are non-negotiable. Whether for off-road recovery vehicles, patrol car upgrades, motorsport applications, or custom restorations, the LSX376-B15 eliminates sourcing and verification headaches. The complete assembly reduces installation complexity compared to piecing together engine components from multiple suppliers, and the factory dyno certification provides documented baseline performance before ever firing the engine on a dynamometer or in the vehicle.

The LS engine platform remains the standard in performance circles precisely because of its balance between displacement efficiency, aftermarket support, and proven longevity. The LSX376-B15's 473 horsepower positions it within the mid-range of LS offerings, making it suitable for applications where power output must be substantial without extreme complexity or exotic fuel requirements. Chevrolet Performance's factory assembly and testing ensure that what arrives is ready for installation—not a gamble on unknown machine work or assembly quality.