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  73 -75 Grand Am Spotter's Guide  

1973
Total of 6 grille openings with vertical bars.
Round front turn signals.
Horizontal rear taillights.
Chrome rear bumper.
Engines
400 (6.5L) 2bbl with automatic.
400 (6.5L) 4bbl with automatic.
400 (6.5L) 4bbl with 4 speed. (not avail in CA?)
455 (7.4L) 4bbl with automatic.
Engines may have points or Unitized ignition.
A SD-455 equipped engineering prototype Grand Am was been built, but supposedly was dismantled and destroyed.
1974
Total of 12 grille openings with horizontal bars.
Vertical rear taillights.
Chrome rear bumper.
Engines
400 (6.5L) 2bbl with automatic.
400 (6.5L) 4bbl with automatic.
400 (6.5L) 4bbl with 4 speed. (not avail in CA)
455 (7.4L) 4bbl with automatic.
Engines may have points, Unitized ignition or
starting May 1, 1974, HEI ignition .
1975
Same as 1974, but total of 12 grille openings with vertical bars.
Vertical rear taillights, same as 1974.
Body-colored rear bumper.
Engines
400 (6.5L) 2bbl with automatic.
400 (6.5L) 4bbl with automatic.
455 (7.4L) 4bbl with automatic.
All engines have HEI ignition.
First year for catalytic converter.
4-speed not available.