3.0 L (181 cu in) Buick V6, 2-barrel carburetor (VIN E)

Years 1982–85 Models 2

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Also described as Engine, 3.0L V6, 181 cu in, 2 barrel

Also documented for Oldsmobile

Documented applications

Century — A-body (1982–1996)

1982–1985 Confirmed

Electra — C-body, front-drive (1985–1990)

1985 Single-source

the Electra 300's standard engine, 110 hp; Wikipedia's Buick V6 article gives LK9 to the 1985 Electra, and its Electra article drops the 3.0L for 1986; VIN code E from the 1985 NICB manual, which prints no RPO codes; gnttype.org's 1985 table does not list it under the Electra

This page aggregates every documented appearance of LK9 in the Buick reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.