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    Fuzzy match across codes, option descriptions, and model aliases. Every result is graded and, where the factory documents it, cited.
    SP1 Single-source

    Chevrolet · Regular Production Option

    unknown

    Years 1972 Models 1

    Documented applications

    Chevelle / El Camino
    • 1972 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 SP1 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.