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    Fuzzy match across codes, option descriptions, and model aliases. Every result is graded and, where the factory documents it, cited.
    LT1 Factory-verified

    Buick · Regular Production Option

    Engine, 5.7L V8, sequential fuel injection

    Years 1994–96 Models 1 Factory citations 3
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    Also documented for CadillacChevrolet

    Documented applications

    Roadmaster — B-body (1991–1996)
    • 1994–1996 Factory-verified

      260 hp, sedan and wagon; Wikipedia's Roadmaster article names LT1 from 1994 and its OBD-II change for 1996; shared B-body code; cited from the Chevrolet Caprice kit

      GM Heritage factory kit — 1994 Chevrolet Caprice, p.12.
      GM Heritage factory kit — 1995 Chevrolet Caprice, p.7.
      GM Heritage factory kit — 1996 Chevrolet Caprice, p.11.

    This page aggregates every documented appearance of LT1 in the Buick reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.