4.3 L (262 cu in) V6 diesel, fuel injected

Years 1982–85, 2025–27 Models 2 Factory citations 7

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Also described as Engine, 5.5L V8, twin turbo

Also documented for Buick Oldsmobile Pontiac

Documented applications

Celebrity — A-body (1982–1990)

1982–1985 Factory-verified

Not with ZV8; 1985: not in California; 1982: the kit names LT7 and gives diesel data, but its power-team page lists no diesel, and Wikipedia starts it in 1983

GM Heritage factory kit — 1982 Chevrolet Celebrity, p.20.
GM Heritage factory kit — 1983 Chevrolet Celebrity, p.5, p.6.
GM Heritage factory kit — 1984 Chevrolet Celebrity, p.11, p.17.
GM Heritage factory kit — 1985 Chevrolet Celebrity, p.43.

Corvette — C8 (2020–2027)

2025–2027 Factory-verified

only in: ZR1, ZR1X

GM factory document — 2025 chevrolet corvette fleet order guide rpo codes, p.4.
GM factory document — 2026 chevrolet corvette fleet order guide rpo codes, p.4.
GM factory document — 2027 chevrolet corvette fleet order guide rpo codes, p.5.

This page aggregates every documented appearance of LT7 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.