Engine, 6.0L V8 high output (Vortec HO 6000), iron block

Years 1982–86, 2002–07 Models 2 Factory citations 12

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Also described as Engine, 2.5L L4, electronic fuel injection

Also documented for Cadillac GMC Pontiac

Documented applications

Camaro — Gen 3 (1982–1992)

1982–1986 Factory-verified

GM Heritage factory kit — 1982 Chevrolet Camaro, p.35.
GM Heritage factory kit — 1983 Chevrolet Camaro, p.35.
GM Heritage factory kit — 1984 Chevrolet Camaro, p.3.
GM Heritage factory kit — 1985 Chevrolet Camaro, p.33.
GM Heritage factory kit — 1986 Chevrolet Camaro, p.39.

Silverado — GMT800 (1999–2007)

2002–2007 Factory-verified

the Silverado SS engine in the 2003 and 2005 SS order guides

GM factory document — 2002 chevrolet chevy c silverado 2wd rpo code list, p.1.
GM factory document — 2004 chevrolet chevy c silverado 2wd rpo code list, p.1.
GM factory document — 2007 chevrolet silverado classic 2wd rpo code list, p.1.
GM Heritage factory kit — 2002 Chevrolet Silverado, p.45.
GM Heritage factory kit — 2003 Chevrolet Silverado SS, p.207.
GM Heritage factory kit — 2005 Chevrolet Silverado SS, p.129.
GM Heritage factory kit — 2007 Chevrolet Silverado, p.55.

This page aggregates every documented appearance of LQ9 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.