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    Fuzzy match across codes, option descriptions, and model aliases. Every result is graded and, where the factory documents it, cited.
    LG4 Factory-verified

    GMC · Regular Production Option

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

    Years 1983–87 Models 1 Factory citations 5
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    Also documented for ChevroletPontiac

    Documented applications

    Caballero — G-body (1983–1987)
    • 1983–1987 Factory-verified

      Optional; 1986 from the power team page's ratings line; shared G-body platform code; cited from the joint El Camino/Caballero pages of the Chevrolet El Camino kits

      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.4.
      GM Heritage factory kit — 1987 Chevrolet El Camino, p.31.

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