L13 / L11 ✓ Factory-verified

Chevrolet · Regular Production Option

140ci I4, 1-bbl (base) / 2-bbl

Years 1975–77 Models 1 Factory citations 2

Documented applications

Vega / Monza →

• 1975–1977 ✓ Factory-verified

  dropped after 1977 with the Vega engine line

  ⛭ GM Heritage factory kit — 1975 Chevrolet Vega, p.121.

  ⛭ GM Heritage factory kit — 1976 Chevrolet Monza, p.6.

This page aggregates every documented appearance of L13 / L11 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.