Chevrolet Vega Engines by Year

The Vega was Chevrolet's subcompact from 1971 to 1977. Every Vega used a 2.3 four with an aluminum cylinder block, and the 1975–1976 Cosworth Vega used a twin-cam, fuel-injected version.

Pick a year to see every engine offered that model year, with its code, rated horsepower and the trims it came in. Each engine links to its full specs.

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1971–1977: 1971 · 1972 · 1973 · 1974 · 1975 · 1976 · 1977

1971–1977

Ratings are gross for 1971 and SAE net from 1972. The one-barrel engine was dropped after 1976, leaving the two-barrel as the only engine for 1977.

1971 Vega engines

Engine	Rated	Offered in
140 inline-four (L13)	90 hp gross	All
140 inline-four (L11)	110 hp gross	All; included in GT package

1972 Vega engines

Engine	Rated	Offered in
140 inline-four (L13)	80 hp net	All
140 inline-four (L11)	90 hp net	All

1973 Vega engines

Engine	Rated	Offered in
140 inline-four (L13)	72 hp net	All
140 inline-four (L11)	85 hp net	All

1974 Vega engines

Engine	Rated	Offered in
140 inline-four (L13)	75 hp net	All
140 inline-four (L11)	85 hp net	All

1975 Vega engines

Engine	Rated	Offered in
122 inline-four Z09 package Cosworth Vega: twin-cam, fuel-injected.	110 hp net	Cosworth Vega 2-door hatchback (1HV77)
140 inline-four (L13)	78 hp net	All (not California)
140 inline-four (L11)	87 hp net	All; only engine in California

1976 Vega engines

Engine	Rated	Offered in
2.0L / 122 inline-four Z09 package Cosworth Vega: twin-cam, fuel-injected.	110 hp net	Cosworth Vega 2-door hatchback (1HV77)
2.3L / 140 inline-four (L13)	70 hp net	All (not California)
2.3L / 140 inline-four (L11)	84 hp net	All

1977 Vega engines

Engine	Rated	Offered in
2.3L / 140 inline-four (L11)	84 hp net	All

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