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The available engine options for the Alero are:
- A.T. 3.4L
- A.T. 2.2L
- 3.4L (VIN E, 8th digit)
- 2.2L (VIN F, 8th digit) w/o EGR port in head
- 2.2L (VIN F, 8th digit) EGR port in head
- M.T.
- A.T. 2.4L
- 3.4L (VIN E, 6-207)
- 2.4L (VIN T, 4-146)
- 3.4L (VIN E, 8th digit) Federal (NF2)
- 3.4L (VIN E, 8th digit) Calif (NC1)
- 2.4L (VIN T, 8th digit)

