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    Fuzzy match across codes, option descriptions, and model aliases. Every result is graded and, where the factory documents it, cited.
    L21 Factory-verified

    Chevrolet · Regular Production Option

    194 cid I6

    Years 1965 Models 1 Factory citations 1

    Documented applications

    C/K Trucks
    • 1965 Factory-verified

      Base six, lightest models

      GM Heritage factory kit — 1965 Chevrolet Truck, p.19.

    This page aggregates every documented appearance of L21 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.