L90 ● Confirmed

Chevrolet · Regular Production Option

L6 engine - 250 low compression

Years 1963–79 Models 3

Also described as 250ci L6, low compression250 CID CID 6 cylinder

Documented applications

Camaro →

• 1967–1969 ◑ Single-source

  export

Impala / Full-Size →

• 1963–70s (varies) ● Confirmed

  Low compression

Nova / Chevy II →

• 1974 ● Confirmed

This page aggregates every documented appearance of L90 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.