400ci small-block 2-bbl / 4-bbl V8

Years 1973–76 Models 1 Factory citations 1

Documented applications

1973–1976 Factory-verified

400-4bbl code LT4 per 348-409.com (single-source)

GM Heritage factory kit — 1974 Chevrolet Monte Carlo, p.6.

This page aggregates every documented appearance of LF6 / LT4 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.