Chevrolet Performance LSX 454ci/620HP Engine
GM Performance Parts is pleased to announce the launch of the LSX 454 crate engine, the latest addition to the LSX engine family. GM has combined the Bow Tie LSX Block with the new LSX-LS7 cylinder heads and some very special big bore components. These new heads are an as-cast LS7 version with a six-bolt pattern, titanium valves, and high-lift camshaft. The engine is built with forged LSX pistons, rods, and crankshaft for a solid foundation. With a 11 to 1 compression ratio, this is a true powerhouse for any LS performance project (and still runs on pump gas).
The engine delivers exceptional performance in a straight bolt-on LS package. The LSX454 is delivered without an intake manifold so you can top it with a carburetor or LS7 production-style injection system (P/N 12610435). The LSX454 is a long block with only a dust cover so you can order an oil pan appropriate for your setup. This configuration allows you to assemble the engine how you want it.Specifications
Note: Standard 24/50 GMPP Crate Engine Warranty applies