Oldsmobile Starfire Engines by Year

The Starfire name covered Oldsmobile's big performance convertibles and coupes, then a Monza-based subcompact. Ratings are gross through 1971 and SAE net from 1972.

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.

Jump to a year

full-size (1961–1966): 1961 · 1962 · 1963 · 1964 · 1965 · 1966

H-body subcompact (1975–1980): 1975 · 1976 · 1977 · 1978 · 1979 · 1980

full-size (1961–1966)

1961 Starfire engines

Engine	Rated	Offered in
394 V8	330 hp gross	Starfire convertible (mid-year 1961)

1962 Starfire engines

Engine	Rated	Offered in
394 V8	345 hp gross	Starfire coupe, Starfire convertible

1963 Starfire engines

Engine	Rated	Offered in
394 V8	345 hp gross	Starfire coupe, Starfire convertible

1964 Starfire engines

Engine	Rated	Offered in
394 V8	345 hp gross	Starfire coupe, Starfire convertible

1965 Starfire engines

Engine	Rated	Offered in
425 V8	370 hp gross	Starfire coupe, Starfire convertible

1966 Starfire engines

Engine	Rated	Offered in
425 V8	375 hp gross	Starfire coupe

H-body subcompact (1975–1980)

1975 Starfire engines

Engine	Rated	Offered in
231 V6 (LD7)	110 hp net	Starfire, Starfire SX, GT package

1976 Starfire engines

Engine	Rated	Offered in
3.8L / 231 V6 (LD7)	110 hp net	Starfire, Starfire SX, GT package

1977 Starfire engines

Engine	Rated	Offered in
2.3L / 140 inline-four	—	Starfire, Starfire SX, GT package
3.8L / 231 V6 (LD5)	—	Starfire, Starfire SX, GT package
5.0L / 305 V8 (LG3)	—	Starfire, Starfire SX, GT package

1978 Starfire engines

Engine	Rated	Offered in
2.5L / 151 inline-four (LX6/LX8)	85 hp net	Starfire, Starfire SX, GT package, Firenza package
3.8L / 231 V6 (LD5)	—	Starfire, Starfire SX, GT package
5.0L / 305 V8 (LG3)	—	Starfire, Starfire SX, GT package

1979 Starfire engines

Engine	Rated	Offered in
2.5L / 151 inline-four (LX6/LX8)	85 hp net	Starfire, Starfire SX, GT package, Firenza package
3.8L / 231 V6 (LD5)	—	Starfire, Starfire SX, GT package
5.0L / 305 V8 (LG3)	—	Starfire, Starfire SX, GT package

1980 Starfire engines

Engine	Rated	Offered in
2.5L / 151 inline-four (LX6/LX8)	85 hp net	Starfire, Starfire SX, GT package, Firenza package
3.8L / 231 V6 (LD5)	—	Starfire, Starfire SX, GT package

Working on one of these engines?

• Engine displacement from bore and stroke
• Static and dynamic compression ratio
• Which camshaft for your build
• What size carburetor
• Horsepower to torque at any RPM
• Torque converter stall speed

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