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    Fuzzy match across codes, option descriptions, and model aliases. Every result is graded and, where the factory documents it, cited.
    LG8 Single-source

    Cadillac · Regular Production Option

    Engine, 5.0L V8, 4 barrel, 307 cu in, high output

    Years 1986–88 Models 1
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    Also documented for BuickChevroletOldsmobilePontiac

    Documented applications

    Fleetwood Brougham / Brougham — D-body (1983–1992)
    • 1986–1988 Single-source

      high output derivative of the Oldsmobile 307 (VIN code 9); Wikipedia's Brougham article says the VIN 9 cars, built from 1986 and found as commercial chassis, generally carry the LG8, and its Oldsmobile V8 engine article lists the Brougham with VIN 9 for 1985 through 1988; years are restricted to what both print (the Brougham article's end year of 1990 and the engine article's 1985 are left out); the articles count as one source

    This page aggregates every documented appearance of LG8 in the Cadillac reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.