Engine - V8, 454 Cu. In. Special Hi Performance

Years 1970–71 Models 3 Factory citations 5

Also described as 454 ci 450 hp V8454ci 425hp Engine (aluminum heads)454 CID V8 450hp

Documented applications

Chevelle / El Camino

1970–1971 Factory-verified

GM Heritage factory kit — 1970 Chevrolet Chevelle, p.63.
GM Heritage factory kit — 1971 Chevrolet El Camino, p.33.
1970 (–1971 listed) Factory-verified

The legendary SS 454 LS6; 1971 LS6 Chevelle listed but essentially none delivered — treat 1971 as disputed (factory kit resolves: present in 1970-Chevrolet-Chevelle.txt)

GM Heritage factory kit — 1970 Chevrolet Chevelle, p.63.
GM Heritage factory kit — 1971 Chevrolet El Camino, p.33.

Corvette (C3)

1971 Factory-verified

$1,221.00; 188 built; only year LS6 offered in a Corvette

GM Heritage factory kit — 1971 Chevrolet Corvette, p.6.

Impala / Full-Size

1970 Confirmed

Spec. hi-perf. & 4 bbl

This page aggregates every documented appearance of LS6 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.