Maximum efficiency equipment

Years 1968–82, 1984 Models 3 Factory citations 3

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Also described as Special Sport SedanSpecial sport sedan

Documented applications

Chevelle / El Camino

1968–1969 Factory-verified

GM Heritage factory kit — 1968 Chevrolet Chevelle, p.73.
GM Heritage factory kit — 1969 Chevrolet El Camino, p.68.

Impala / Full-Size

1968+ Confirmed

Cavalier — first generation (1982–1987)

1984 Factory-verified

only in: coupe (1JE27), not with the Z08 convertible

GM Heritage factory kit — 1984 Chevrolet Cavalier, p.8.

This page aggregates every documented appearance of ZJ6 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.