LS6 ✓ Factory-verified

Cadillac · Regular Production Option

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

Years 2005 Models 1 Factory citations 1

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Also documented for Chevrolet

Documented applications

CTS — Sigma / GMX320 (2003–2007) →

• 2005 ✓ Factory-verified

  only in: CTS-V (Wikipedia).

  ⛭ GM factory document — 2005 cadillac cts rpo code list, p.1.

This page aggregates every documented appearance of LS6 in the Cadillac reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.