Engine, gas, 8 cylinder, 5.7L, sequential fuel injection, aluminum, ER, GM

Years 2004 Models 1 Factory citations 1

Documented applications

CTS — Sigma / GMX320 (2003–2007)

2004 Factory-verified

The 2004 list prints "9 CYL"; no 5.7L has nine cylinders, so it is read as 8 cylinder. Appears on one list only.

GM factory document — 2004 cadillac cts rpo code list, p.1.

This page aggregates every documented appearance of LCT in the Cadillac reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.