2.8 L (173 cu in) V6, multi-port fuel injection

Years 1985–89 Models 6 Factory citations 15

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Also described as Engine, 2.8L V6, multiport fuel injection

Also documented for Buick Cadillac Oldsmobile Pontiac

Documented applications

Beretta — L-body (1987–1996)

1988–1989 Factory-verified

optional; standard on the GT; the 1990 option-weight page still lists it, but the 1990 order guide and power teams list the LH0 instead; same description as cavalier-gen2 and cavalier-gen1

GM Heritage factory kit — 1988 Chevrolet Beretta, p.7.
GM Heritage factory kit — 1989 Chevrolet Beretta, p.7.

Cavalier — first generation (1982–1987)

1985–1987 Factory-verified

1985: optional on all models; 1986–1987: optional on the convertible, standard on the Z24

GM Heritage factory kit — 1985 Chevrolet Cavalier, p.5.
GM Heritage factory kit — 1986 Chevrolet Cavalier, p.5.
GM Heritage factory kit — 1987 Chevrolet Cavalier, p.5.

Cavalier — second generation (1988–1994)

1988–1989 Factory-verified

standard on the Z24; 1989 also optional on the wagon

GM Heritage factory kit — 1988 Chevrolet Cavalier, p.7.
GM Heritage factory kit — 1989 Chevrolet Cavalier, p.8.

Celebrity — A-body (1982–1990)

1985–1989 Factory-verified

Optional; 1989 order guide requires C60 air conditioning with it

GM Heritage factory kit — 1985 Chevrolet Celebrity, p.43.
GM Heritage factory kit — 1986 Chevrolet Celebrity, p.5, p.7.
GM Heritage factory kit — 1987 Chevrolet Celebrity, p.5, p.7.
GM Heritage factory kit — 1988 Chevrolet Celebrity, p.7, p.9.
GM Heritage factory kit — 1989 Chevrolet Celebrity, p.29.

Citation — X-body (1983–1985)

1985 Factory-verified

173 cu in; the engine pages call it the 2.8 multi-port FI; requires power brakes

GM Heritage factory kit — 1985 Chevrolet Citation, p.33.

Corsica — L-body (1987–1996)

1988–1989 Factory-verified

optional; included with the LTZ (1989); requires C60 (1989 order guide); the 1990 option-weight page still lists it, but the 1990 order guide and power teams list the LH0 instead; same description as beretta-gen1

GM Heritage factory kit — 1988 Chevrolet Corsica, p.5.
GM Heritage factory kit — 1989 Chevrolet Corsica, p.9.

This page aggregates every documented appearance of LB6 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.