LS3 6.2L V8 Crate Engine

The Chevrolet Performance LS3 crate engine (part number 19540155) is a powerful Gen IV Small-Block V8 designed for high performance and reliability. It boasts a 6.2L (376 cubic inch) displacement and a bore and stroke of 4.065 inches by 3.622 inches, respectively. The engine is constructed with a durable cast aluminum block featuring 6-bolt, cross-bolted main caps for enhanced strength. Internally, the LS3 is equipped with a nodular iron crankshaft and powdered metal connecting rods. It utilizes aluminum L92-style port cylinder heads with as-cast 68cc chambers, contributing to its impressive performance figures. The engine achieves 430 horsepower at 5,900 rpm and 425 lb-ft of torque at 4,600 rpm, with a compression ratio of 10.7:1. It is recommended to use premium pump fuel. This LS3 crate engine is noted as the standard engine for the fifth-generation Camaro SS and C6 Corvette. Some sources indicate that this part is intended for competition use only. It is important to consult specific application guides for compatibility and any necessary supporting modifications or components.