Interior Decor / Quiet Sound group

Years 1973–81 Models 2 Factory citations 4

Also described as Interior decor/quiet group

Documented applications

Camaro

1973–1981 Factory-verified

standard with Type LT

GM Heritage factory kit — 1973 Chevrolet Camaro, p.6.
GM Heritage factory kit — 1981 Chevrolet Camaro, p.11.

Nova / Chevy II

1973–1975 Factory-verified

GM Heritage factory kit — 1973 Chevrolet Nova, p.8.
GM Heritage factory kit — 1975 Chevrolet Nova, p.22.

This page aggregates every documented appearance of Z54 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.