292 cid I6

Years 1963–87 Models 2 Factory citations 7

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Also described as 292 cid I6 (292T)Engine, 4.8L L6, 1 barrel

Also documented for GMC

Documented applications

C/K Trucks

1963–66 Factory-verified

Optional big six

GM Heritage factory kit — 1965 Chevrolet Truck, p.19.
GM Heritage factory kit — 1966 Chevrolet Truck, p.24.
1967–72 Confirmed

Optional big six
1973–82 Confirmed

3/4-, 1-ton and HD 1/2

C/K pickup — Square body (1983–1991)

1983–1987 Factory-verified

the option pages list the 4.8 liter (292 cu in) 1 barrel L6 for heavy chassis and 30 series trucks; a 1987 value-features page (p.13) calls the 4.8L L6 discontinued, but the February 1987 power team and option pages still list it

GM Heritage factory kit — 1983 Chevrolet Truck, p.15.
GM Heritage factory kit — 1984 Chevrolet Truck, p.23.
GM Heritage factory kit — 1985 Chevrolet Truck, p.23.
GM Heritage factory kit — 1986 Chevrolet Truck, p.166.
GM Heritage factory kit — 1987 Chevrolet Truck, p.43.

This page aggregates every documented appearance of L25 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.