Engine, 3.8L V6, turbocharged, intercooled, sequential fuel injection

Years 1986–87 Models 1

Documented applications

Regal — G-body (1983–1987)

1986–1987 Confirmed

gnttype.org's 1986 and 1987 VIN tables (engine VIN code 7) and its 1987 option sheet: requires Y56 and C60, and included with WE2; Wikipedia dates the intercooler and the LC2 code from 1986

This page aggregates every documented appearance of LC2 in the Buick reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.