Engine, 5.7L V8, 4 barrel, police

Years 1969–82, 1985–88 Models 5 Factory citations 10

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Also described as 350ci 255 hp 4-bbl V8350ci 190 hp 4-bbl V8350 CID V8 255hpV8 engine - 350 regular fuel

Also documented for Oldsmobile

Documented applications

Camaro

1969 Factory-verified

replaced by L65 1/1/69

GM Heritage factory kit — 1969 Chevrolet Camaro, p.5.
1975–1981 Factory-verified

required for Z28 from 1980

GM Heritage factory kit — 1975 Chevrolet Camaro, p.17.
GM Heritage factory kit — 1981 Chevrolet Camaro, p.39.

Impala / Full-Size

1969- Factory-verified

4 barrel

GM Heritage factory kit — 1969 Chevrolet, p.47.

Nova / Chevy II

1969, 1974–1979 Factory-verified

GM Heritage factory kit — 1969 Chevrolet Nova, p.21.
GM Heritage factory kit — 1979 Chevrolet Nova, p.4.

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

1986–1988 Factory-verified

only in: police sedan (1BL69); 350 cu in; the 1986 and 1988 sheets print LMI; the 1985 sheet lists it for the 1BL69, then the Impala, so 1985 is left to the Impala doc

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.66.

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

1985 Factory-verified

only in: police sedan (1BL69); 350 cu in; police only; the 1985 power-teams and engine pages do not list police engines; the air-conditioning weight remarks (p.40) also name it with the sedan (1BL69); the 1984 sheets print LMT, so 1984 is left out

GM Heritage factory kit — 1985 Chevrolet Caprice, p.41.

This page aggregates every documented appearance of LM1 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.