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    Fuzzy match across codes, option descriptions, and model aliases. Every result is graded and, where the factory documents it, cited.
    C18 Single-source

    Chevrolet · Regular Production Option

    Unknown. (1965 Oshawa Line Schedule Tag)

    Years 1965 Models 1

    Documented applications

    Chevelle / El Camino
    • 1965 Single-source

      footnote-flagged in source (Canada/export, build-sheet/tag-only, documentation-only, or package base engine not reported as an option — see chevellestuff legend); meaning unknown in source

    This page aggregates every documented appearance of C18 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.