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

    Oldsmobile · Regular Production Option

    390 hp 455 4-bbl w/dual exhaust — "Delta GT" engine option

    Years 1969 Models 1

    Documented applications

    Full-Size 88 / 98
    • 1969 Single-source

      Delta/Delta Custom/Royale; option code not given in sources (became W-33 in 1970). The 1969 442 Info Kit uses no W-33 code (W-33 first appears 1970), corroborating the code gap

      Grade note: single-source (code gap) [HK: oldsmobile/1969_Oldsmobile_442_Info_Kit.txt — no W-33 present]

    Related codes · mentioned in these notes

    W-33

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