Oldsmobile Alero Engines by Year

The Alero was Oldsmobile's N-body compact, the last new car the division built.

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

N-body (1999–2004): 1999 · 2000 · 2001 · 2002 · 2003 · 2004

N-body (1999–2004)

1999 Alero engines

Engine	Rated	Offered in
2.4L / 146 inline-four (LD9)	150 hp net	Alero GX, GL
3.4L / 207 V6 (LA1)	170 hp net	Alero GLS, GL (optional)

2000 Alero engines

Engine	Rated	Offered in
2.4L / 146 inline-four (LD9)	150 hp net	Alero GX, GL
3.4L / 207 V6 (LA1)	170 hp net	Alero GLS, GL (optional)

2001 Alero engines

Engine	Rated	Offered in
2.4L / 146 inline-four (LD9)	150 hp net	Alero GX, GL
3.4L / 207 V6 (LA1)	170 hp net	Alero GLS, GL (optional)

2002 Alero engines

Engine	Rated	Offered in
2.2L / 134 inline-four (L61)	140 hp net	Alero GX, GL1
3.4L / 207 V6 (LA1)	170 hp net	Alero GLS, GL (optional)

2003 Alero engines

Engine	Rated	Offered in
2.2L / 134 inline-four (L61)	140 hp net	Alero GX, GL1
3.4L / 207 V6 (LA1)	170 hp net	Alero GLS, GL (optional)

2004 Alero engines

Engine	Rated	Offered in
2.2L / 134 inline-four (L61)	140 hp net	Alero GX, GL1
3.4L / 207 V6 (LA1)	170 hp net	Alero GLS, GL (optional)

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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