Engine, 5.0L V8, 305 cu in, 4 barrel

Years 1979–88 Models 9 Factory citations 34

Also described as 305ci 155 hp 4-bbl V8305ci 180hp engine (California only)305ci 4-bbl V8Engine, 5.0L V8, 4-barrel carburetorEngine, 5.0L V8, 4 barrelEngine, 5.0L V8, 305 cu in, 4-barrel carburetor

Also documented for GMC Pontiac

Documented applications

Camaro

1980–1981 Factory-verified

GM Heritage factory kit — 1980 Chevrolet Camaro, p.5.
GM Heritage factory kit — 1981 Chevrolet Camaro, p.33.

Corvette (C3)

1980 Factory-verified

$50.00 credit (CAC shows -$50; CorvSport shows $50; CorvetteStory n/a); 3,221 built — mandatory on all California cars, matching YF5 count; auto trans only; the Corvette Black Book shows LG4 at 3,221 built with a $50 credit, and the GM kit pages list RPO LG4 (p.59, p.62)

GM Heritage factory kit — 1980 Chevrolet Corvette, p.62.

Monte Carlo

1979–1982 Factory-verified

160 hp 4-bbl option

GM Heritage factory kit — 1979 Chevrolet Monte Carlo, p.36.
GM Heritage factory kit — 1982 Chevrolet Monte Carlo, p.24.

Camaro — Gen 3 (1982–1992)

1982–1987 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.
GM Heritage factory kit — 1987 Chevrolet Camaro, p.15.

Caprice — third generation, B-body (1983–1990)

1983–1988 Factory-verified

305 cu in; 1984–1985 also on the wagon; 1987–1988 not on the wagon; 1988 guide: requires C60 air conditioning

GM Heritage factory kit — 1983 Chevrolet Caprice, p.13.
GM Heritage factory kit — 1984 Chevrolet Caprice, p.39.
GM Heritage factory kit — 1985 Chevrolet Caprice, p.41.
GM Heritage factory kit — 1986 Chevrolet Caprice, p.41.
GM Heritage factory kit — 1987 Chevrolet Caprice, p.44.
GM Heritage factory kit — 1988 Chevrolet Caprice, p.10.

El Camino — fifth generation (1983–1987)

1983–1987 Factory-verified

Optional

GM Heritage factory kit — 1983 Chevrolet El Camino, p.5.
GM Heritage factory kit — 1984 Chevrolet El Camino, p.21.
GM Heritage factory kit — 1985 Chevrolet El Camino, p.10.
GM Heritage factory kit — 1986 Chevrolet El Camino, p.5.
GM Heritage factory kit — 1987 Chevrolet El Camino, p.31.

Impala — sixth generation, B-body (1983–1985)

1983–1985 Factory-verified

305 cu in; 1984–1985: listed for the sedan (1BL69)

GM Heritage factory kit — 1983 Chevrolet Impala, p.16.
GM Heritage factory kit — 1984 Chevrolet Caprice, p.39.
GM Heritage factory kit — 1985 Chevrolet Caprice, p.41.

Malibu — fourth generation, A-body (1983)

1983 Factory-verified

sedan and wagon; with NA5, NA6 or YF5 emissions

GM Heritage factory kit — 1983 Chevrolet Malibu, p.20.
GM Heritage factory kit — 1983 Chevrolet Malibu, p.23.
GM Heritage factory kit — 1983 Chevrolet Malibu, p.35.

Monte Carlo — fourth generation (1983–1988)

1983–1988 Factory-verified

not on the SS

GM Heritage factory kit — 1983 Chevrolet Monte Carlo, p.30.
GM Heritage factory kit — 1984 Chevrolet Monte Carlo, p.36.
GM Heritage factory kit — 1985 Chevrolet Monte Carlo, p.30.
GM Heritage factory kit — 1986 Chevrolet Monte Carlo, p.32.
GM Heritage factory kit — 1987 Chevrolet Monte Carlo, p.40.
GM Heritage factory kit — 1988 Chevrolet Monte Carlo, p.34.

This page aggregates every documented appearance of LG4 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.