- 1969–1970 Factory-verifiedGM Heritage factory kit — 1969 Chevrolet Chevelle, p.83.GM Heritage factory kit — 1970 Chevrolet El Camino, p.23.
- 1969–1970 Factory-verified
SS became an option package (previously its own series 1964–68); base engine L35/L34 396
GM Heritage factory kit — 1969 Chevrolet Chevelle, p.83.GM Heritage factory kit — 1970 Chevrolet El Camino, p.23.
Z25 Factory-verified
Also described as SS 396 Equipment packageAppearance package, 40th AnniversaryAppearance package, 50th Anniversary, limited editionGrand Sport Collector EditionGrand Sport Launch Edition
Documented applications
- 1993 Factory-verifiedGM Heritage factory kit — 1993 Chevrolet Corvette, p.18.
- 2003 Factory-verified
2003 order guide: the 50th Anniversary Package, included in the 1SC group of coupe and convertible, with 94U and 154 available only with it
GM Heritage factory kit — 2003 Chevrolet Corvette, p.107.
- 2017 Factory-verified
only in: Grand Sport; Grand Sport 3LT: O
- 2027 Factory-verified
only in: Grand Sport, Grand Sport X
This page aggregates every documented appearance of Z25 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.