The Chevrolet Performance LS 376/515 LS3 Long Block Crate Engine (19370412) is a performance-focused version of the LS3, featuring an aggressive camshaft that increases output to 515 HP and 483 lb-ft of torque. The carbureted intake manifold setup makes it an excellent choice for classic muscle cars and custom builds, allowing for a simplified fuel system while retaining modern LS power.

Big horsepower in a lightweight LS package!