LM1 ● Confirmed

Oldsmobile · Regular Production Option

350 Chevrolet 4-bbl (single exhaust)

Years 1977–79 Models 1

Documented applications

Full-Size 88 / 98 →

• 1977–79 ● Confirmed

  88 (engine-swap controversy era)

  Grade note: confirmed (code), application single-source

This page aggregates every documented appearance of LM1 in the Oldsmobile reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.