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    Fuzzy match across codes, option descriptions, and model aliases. Every result is graded and, where the factory documents it, cited.
    LD5 Factory-verified

    Chevrolet · Regular Production Option

    231ci 3.8L Buick V6 (base 1978; CA base later)

    Years 1978–82 Models 3 Factory citations 6

    Also described as 231ci 3.8L 2-bbl Buick V6231ci 3.8L Buick V6

    Documented applications

    Camaro
    • 1980–1981 Factory-verified

      California

      GM Heritage factory kit — 1980 Chevrolet Camaro, p.45.
      GM Heritage factory kit — 1981 Chevrolet Camaro, p.6.
    Monte Carlo
    • 1978–1982 Factory-verified
      GM Heritage factory kit — 1978 Chevrolet Monte Carlo, p.58.
      GM Heritage factory kit — 1982 Chevrolet Monte Carlo, p.26.
    Vega / Monza
    • 1978–1980 Factory-verified

      CA/high-altitude V6 through 1979; only engine option in 1980

      GM Heritage factory kit — 1978 Chevrolet Monza, p.40.
      GM Heritage factory kit — 1980 Chevrolet Monza, p.21.

    This page aggregates every documented appearance of LD5 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.