427ci W-series "Z11" lightweight drag package

Years 1963, 1969, 1975 Models 3 Factory citations 2

Also described as Indy pace car convertible accentsThe aluminum nosed 430hp 427 ImpalaLN package

Documented applications

Camaro

1969 Factory-verified

3,675 built; added Feb 69

GM Heritage factory kit — 1969 Chevrolet Camaro, p.126.

Impala / Full-Size

1963 only Confirmed

Also see: Z-11 fact page Z-11 trivia page
1963 Confirmed

50 built; aluminum front body parts, 13.5:1 CR, dual AFBs, 430 hp

Nova / Chevy II

1975 Factory-verified

GM Heritage factory kit — 1975 Chevrolet Nova, p.2.

This page aggregates every documented appearance of Z11 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.