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    Fuzzy match across codes, option descriptions, and model aliases. Every result is graded and, where the factory documents it, cited.
    L80 Factory-verified

    Chevrolet · Regular Production Option

    409ci 425 hp V8 (2x4-bbl)

    Years 1963–64 Models 1 Factory citations 3
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    Also described as 409 CID V8 425hp

    Also documented for BuickOldsmobilePontiac

    Documented applications

    Impala / Full-Size
    • 1963-64 Factory-verified

      Dual 4 barrel carburetors ($56.00 for 1963)

      GM Heritage factory kit — 1963 Chevrolet, p.36.
    • 1963–1964 Factory-verified
      GM Heritage factory kit — 1963 Chevrolet, p.36.
      GM Heritage factory kit — 1964 Chevrolet, p.8.

    This page aggregates every documented appearance of L80 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.