Y47 ◑ Single-source

Buick · Regular Production Option

Performance package (released mid-1981): dual-resonator exhaust, higher-stall torque converter, 3.08 rear gears; carried into 1982 (3.08 + exhaust made std.)

Years 1981–82 Models 1

Documented applications

Regal / Century →

• 1981–1982 ◑ Single-source

  Regal Sport Coupe

This page aggregates every documented appearance of Y47 in the Buick reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.