The H-body Monza was the Vega's sportier sibling. Fours and Buick-built V6s were the mainstream choices; the 2+2 also offered small-block V8s, which made it a favorite for swaps. The Buick Skyhawk, Oldsmobile Starfire and Pontiac Sunbird were twins.
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.
H-body (1975–1980): 1975 · 1976 · 1977 · 1978 · 1979 · 1980
| Engine | Rated | Offered in |
|---|---|---|
| 140 inline-four (L13) | 78 hp net | Towne Coupe / 2+2 (base, later in year) |
| 140 inline-four (L11) | 87 hp net | 2+2, Towne Coupe |
| 262 V8 (LV1) | 110 hp net | 2+2, Towne Coupe (optional, not Calif.) |
| 350 V8 (L65) | 125 hp net | 2+2 / Towne Coupe (California and high-altitude) |
| Engine | Rated | Offered in |
|---|---|---|
| 2.3L / 140 inline-four (L13) | 70 hp net | 2+2, Towne Coupe (standard, not Calif.) |
| 2.3L / 140 inline-four (L11) | 84 hp net | 2+2, Towne Coupe |
| 4.3L / 262 V8 (LV1) | 110 hp net | 2+2, Towne Coupe (optional, 49 states) |
| 5.0L / 305 V8 (LG3) | 140 hp net | 2+2 (California and high-altitude) |
| Engine | Rated | Offered in |
|---|---|---|
| 2.3L / 140 inline-four (L11) | 84 hp net | 2+2, Towne Coupe (standard) |
| 5.0L / 305 V8 (LG3) | 145 hp net | 2+2, Towne Coupe (optional) |
| Engine | Rated | Offered in |
|---|---|---|
| 2.5L / 151 inline-four (LX6 / LS6) | 85 hp net | All (standard) |
| 3.2L / 196 V6 (LC9) | 90 hp net | All (optional, not Calif.) |
| 3.8L / 231 V6 (LD5) | 105 hp net | All (Calif./high-altitude in place of 196) |
| 5.0L / 305 V8 (LG3) | 145 hp net | 2+2, Towne Coupe, wagon (optional) |
| Engine | Rated | Offered in |
|---|---|---|
| 2.5L / 151 inline-four (LS6 / LS8) | 85 hp net | All (standard, California) |
| 2.5L / 151 inline-four (LX8) | 90 hp net | All (standard, except Calif.) |
| 3.2L / 196 V6 (LC9) | 105 hp net | All (optional, except Calif./high alt.) |
| 3.8L / 231 V6 (LD5) | 115 hp net | All (optional, Calif. and high altitude) |
| 5.0L / 305 V8 (LG3) | 130 hp net | Notchbacks and hatchbacks (optional) |
| Engine | Rated | Offered in |
|---|---|---|
| 2.5L / 151 inline-four (LX8) | 86 hp net | All (standard) |
| 3.8L / 231 V6 (LD5) | 110 hp net | All (optional) |