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    Fuzzy match across codes, option descriptions, and model aliases. Every result is graded and, where the factory documents it, cited.
    1YZ87 Factory-verified

    Chevrolet · Regular Production Option

    Base Corvette Sport Coupe

    Years 1978–80 Models 1 Factory citations 2

    Documented applications

    Corvette (C3)
    • 1978 Confirmed

      $9,351.89 base price; 40,274 built (CorvSport rounds to $9,351.00)

    • 1979 Factory-verified

      $10,220.23 base price; 53,807 built (all-time Corvette production record); L48 standard engine (195hp) not broken out as an RPO by any source; factory kit p.6 states "Production: 53,807 coupes" with VIN range confirming the figure

      GM Heritage factory kit — 1979 Chevrolet Corvette, p.6.
    • 1980 Factory-verified

      $13,140.24 base price; 40,614 built

      GM Heritage factory kit — 1980 Chevrolet Corvette, p.6.

    Related codes · mentioned in these notes

    L48

    This page aggregates every documented appearance of 1YZ87 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.