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"If you’re searching for the ultimate Pontiac bruiser, you could do worse than choose the mighty Firebird Trans Am SD-455. SD stands for “Super Duty,” and in Pontiac-speak that means the 7.5-liter V8 has been prepped for competition work: forged internals, high-flow heads, and a hot cam made it the most powerful American engine offered by a manufacturer in 1973. Way underrated by Pontiac, the big motor made around 371 horsepower and an astonishing 480 ft-lbs. of torque. Just so you wouldn’t be confused about which Firebird you were looking at, Pontiac also loaded the SD-455 up with visual enhancements—the hood bulge shouted “SD-455” to onlookers, and the rear spoiler was likewise emblazoned with large “TRANS AM” script. Interestingly, 1973 was the first year for the soon-to-be-legendary Firebird hood decal, known affectionately as the “Screaming Chicken.” While the decals didn’t make the SD-455 go any faster, it didn’t need any help in that department, as it was capable of 14.5 second quarter-miles dead stock. The SD-455 package was very expensive, which means that not many were produced, making Forza one of the best places to experience this rare bird."
—Official description[1]

The 1973 Pontiac Firebird Trans Am SD-455 - abbreviated as "Pontiac T/A '73" - is a rear-wheel drive muscle car by Pontiac.

It appears in Forza Motorsport 2 as part of the December Car Pack and as standard in all subsequent main series titles, as well as Forza Motorsport 6: Apex, although it does not appear in Forza Horizon.

It appears in Forza Horizon 5 since Series 23.

Synopsis[]

SECTION STUB  You can help the Forza Wiki by adding to this article

Statistics[]

STUB - Forza Motorsport 2  You can help the Forza Wiki by adding to this article.
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Speed 4.3
Acceleration 4.1
Braking 3.0
Handling 3.1
Base Rarity 6.8
D 341
Required DLC:
Requires December Car Pack
Unlock Requirements
North America:
missing data
Rarity: ?
Europe:
missing data
Rarity: ?
Asia:
missing data
Rarity: ?
Performance & Body Style
Body Style:
missing data
Value: 52,000 CR
Speed:
Top Speed: missing data
Acceleration:
0-60 mph (0-97 km/h): missing data
0-100 mph (0-161 km/h): missing data
Braking:
60-0 mph (97-0 km/h): missing data
100-0 mph (161-0 km/h): missing data
Lateral Gs:
60 mph (97 km/h): missing data
120 mph (193 km/h): missing data
Speed 5.3
Handling 4.1
Acceleration 4.9
Launch 4.4
Braking 3.8
E 236
Unlock Requirements
Car Dealer:
Purchase from the car dealer for 25,000 CR
Performance & Body Style
Body Style:
Coupé
Value: 25,000 CR
Speed:
Top Speed: 151.7 mph  (244.1 km/h)
Acceleration:
0-60 mph (0-97 km/h): 5.426 secs.
0-100 mph (0-161 km/h): 12.842 secs.
Braking:
60-0 mph (97-0 km/h): 157.8 ft (48.1 m)
100-0 mph (161-0 km/h): 444.0 ft (135.3 m)
Lateral Gs:
60 mph (97 km/h): 0.77 g
120 mph (193 km/h): 0.71 g
Speed 5.1
Handling 3.7
Acceleration 6.6
Launch 5.8
Braking 3.6
D 305
Unlock Requirements
Car Dealer:
Purchase from the car dealer for 24,000 CR
Performance & Body Style
Body Style:
Sports Car
Value: 24,000 CR
Speed:
Top Speed: 153.1 mph  (246.3 km/h)
Acceleration:
0-60 mph (0-97 km/h): 5.400 secs.
0-100 mph (0-161 km/h): 12.814 secs.
Braking:
60-0 mph (97-0 km/h): 148.2 ft (45.2 m)
100-0 mph (161-0 km/h): 408.3 ft (124.4 m)
Lateral Gs:
60 mph (97 km/h): 0.75 g
120 mph (193 km/h): 0.69 g
Speed 5.7
Handling 3.5
Acceleration 7.2
Launch 6.9
Braking 3.2
D 360
Unlock Requirements
Car Dealer:
Purchase from the car dealer for 26,000 CR or 44 T
Performance & Body Family
Body Family:
American Motorsport
Value: 26,000 CR
Speed:
Top Speed: 154.1 mph  (247.9 km/h)
Acceleration:
0-60 mph (0-97 km/h): 5.400 secs.
0-100 mph (0-161 km/h): 12.800 secs.
Braking:
60-0 mph (97-0 km/h): 119.0 ft (36.3 m)
100-0 mph (161-0 km/h): 323.8 ft (98.7 m)
Lateral Gs:
60 mph (97 km/h): 0.97 g
120 mph (193 km/h): 0.90 g
Speed 5.7
Handling 3.8
Acceleration 7.1
Braking 3.5
D 331
Unlock Requirements
Car Dealer:
Purchase from the car dealer for 26,000 CR
Performance & Division
Division:
Historic American Muscle
Value: 26,000 CR
Speed:
Top Speed: 154.4 mph  (248.4 km/h)
Acceleration:
0-60 mph (0-97 km/h): 5.400 secs.
0-100 mph (0-161 km/h): 12.800 secs.
Braking:
60-0 mph (97-0 km/h): 128.2 ft (39.1 m)
100-0 mph (161-0 km/h): 332.3 ft (101.3 m)
Lateral Gs:
60 mph (97 km/h): 0.98 g
120 mph (193 km/h): 0.91 g
Speed 5.7
Handling 3.8
Acceleration 7.1
Launch 6.9
Braking 3.5
C 460
Unlock Requirements
Car Dealer:
Accumulate 4 medals to unlock
Performance
Speed:
Top Speed: 154.4 mph  (248.4 km/h)
Acceleration:
0-60 mph (0-97 km/h): 5.400 secs.
0-100 mph (0-161 km/h): 12.800 secs.
Braking:
60-0 mph (97-0 km/h): 128.3 ft (39.1 m)
100-0 mph (161-0 km/h): 332.4 ft (101.3 m)
Lateral Gs:
60 mph (97 km/h): 0.98 g
120 mph (193 km/h): 0.91 g
Speed 5.7
Handling 3.9
Acceleration 7.1
Braking 3.6
Common 
D 335
Unlock Requirements
Forzathon:
Complete all challenges for Flock Together
Performance & Division
Division:
Historic Road Racing
Value: 41,500 CR
Collection Tier:
Tier 1 - Common (+75)
Speed:
Top Speed: 154.3 mph  (248.3 km/h)
1/4 Mile: missing data
Acceleration:
0-60 mph (0-97 km/h): 5.400 secs.
0-100 mph (0-161 km/h): 12.800 secs.
Braking:
60-0 mph (97-0 km/h): 137.0 ft (41.8 m)
100-0 mph (161-0 km/h): 352.4 ft (107.4 m)
Lateral Gs:
60 mph (97 km/h): 0.99 g
120 mph (193 km/h): 0.93 g
Speed 2.7
Braking 1.1
Handling 1.3
Acceleration 2.8
D 358
Unlock Requirements
Car Dealer:
Can be purchased from the Car Dealer for 80,000 CR
Performance & Division
Division:
Vintage Muscle
Value: 80,000 CR
Speed:
Top Speed: missing data
1/4 Mile: missing data
Acceleration:
0-60 mph (0-97 km/h): missing data
0-100 mph (0-161 km/h): missing data
Braking:
60-0 mph (97-0 km/h): missing data
100-0 mph (161-0 km/h): missing data
Lateral Gs:
60 mph (97 km/h): missing data
120 mph (193 km/h): missing data
Speed 5.7
Handling 5.0
Acceleration 7.1
Launch 6.2
Braking 5.8
C 506
Unlock Requirements
Autoshow:
Purchase from the Autoshow for 24,000 CR
Performance & Championship
Championship:
American Racers
Value: 24,000 CR
Speed:
Top Speed: 153.1 mph  (246.3 km/h)
Acceleration:
0-60 mph (0-97 km/h): 5.400 secs.
0-100 mph (0-161 km/h): 12.842 secs.
Braking:
60-0 mph (97-0 km/h): 164.4 ft (50.1 m)
100-0 mph (161-0 km/h): 408.2 ft (124.4 m)
Lateral Gs:
60 mph (97 km/h): 0.74 g
120 mph (193 km/h): 0.74 g
Speed 5.7
Handling 5.0
Acceleration 7.1
Launch 6.4
Braking 4.1
C 528
Unlock Requirements
Autoshow:
Purchase from the Autoshow for 61,000 CR
Auction House:
Can be purchased or bid on through an Auction House listing
Performance & Championship
Championship:
Classic Muscle
Value: 61,000 CR
Speed:
Top Speed: missing data
Acceleration:
0-60 mph (0-97 km/h): missing data
0-100 mph (0-161 km/h): missing data
Braking:
60-0 mph (97-0 km/h): missing data
100-0 mph (161-0 km/h): missing data
Lateral Gs:
60 mph (97 km/h): missing data
120 mph (193 km/h): missing data
Speed 6.3
Handling 4.7
Acceleration 5.1
Launch 6.5
Braking 4.4
C 536
Unlock Requirements
This vehicle can not be purchased from the Autoshow, but can be rewarded from a Wheelspin or Super Wheelspin
Auction House:
Can be purchased or bid on through an Auction House listing
Seasonal:
This vehicle may appear as a listed item in the Forzathon Shop or as a Festival Playlist reward.
Forzathon Shop:
N/A
Festival Playlist:
Series 6 (Winter) - "Break The Ice" The Trial
Series 11 (Summer) - "Summer Games" Playground Games
Series 16 (Spring) - "Spring Games" Playground Games
Series 21 (Winter) - "Winter Games" Playground Games
Series 31 (Summer) - "Summer Games" Playground Games
Series 33 (Winter) - "Winter Games" Playground Games
Series 36 (Winter) - "Tour De Force" championship
Series 40 (Summer) - "Summer Games" Playground Games
Series 46 (Spring) - "Spring Games" Playground Games
Series 47 (Winter) - "Winter Games" Playground Games
Series 48 (Winter) - "Tour De Force" championship
Series 52 (Summer) - "Summer Games" Playground Games
Series 58 (Summer) - "Summer Games" Playground Games
Series 60 (Winter) - "Tour De Force" championship
Series 67 (Summer) - "Summer Games" Playground Games
Series 69 (Winter) - "Tour De Force" championship
Series 76 (Summer) - "Summer Games" Playground Games
Performance & Car Type
Car Type:
Classic Muscle
Value: 61,000 CR
Rarity:
Common
Speed:
Top Speed: 152.6 mph  (245.5 km/h)
Acceleration:
0-60 mph (0-97 km/h): 5.400 secs.
0-100 mph (0-161 km/h): 12.787 secs.
Braking:
60-0 mph (97-0 km/h): 208.3 ft (63.5 m)
100-0 mph (161-0 km/h): 504.9 ft (153.9 m)
Lateral Gs:
60 mph (97 km/h): 0.74 g
120 mph (193 km/h): 0.73 g
Speed 5.5
Handling 3.5
Accel 3.4
Launch 3.3
Braking 2.4
Offroad 4.7
C 551
Availability
A possible Festival Playlist or Forzathon Shop listing
Wheelspin:
Can not be won from a Wheelspin or Super Wheelspin
Auction House:
Can be purchased or bid on through an Auction House listing
Seasonal:
This vehicle may appear as a listed item in the Forzathon Shop or as a Festival Playlist reward.
Forzathon Shop:
N/A
Festival Playlist:
Series 23 (Spring) - Earn 20 PTS (season milestone)
Series 43 - Earn 80 PTS (Series milestone)
Performance & Car Type
Car Type:
Classic Muscle
Value: 250,000 CR
Rarity:
Common
Speed:
Top Speed: 152.1 mph  (244.7 km/h)
Acceleration:
0-60 mph (0-97 km/h): 5.375 secs.
0-100 mph (0-161 km/h): 12.770 secs.
Braking:
60-0 mph (97-0 km/h): 172.2 ft (52.5 m)
100-0 mph (161-0 km/h): 429.5 ft (130.9 m)
Lateral Gs:
60 mph (97 km/h): 0.78 g
120 mph (193 km/h): 0.78 g

Upgrade Preset

Speed 8.3
Handling 4.8
Accel 6.3
Launch 6.9
Braking 6.6
Offroad 4.3
S1 867
Availability
A possible Festival Playlist or Forzathon Shop listing
Wheelspin:
Can not be won from a Wheelspin or Super Wheelspin
Auction House:
Can be purchased or bid on through an Auction House listing
Seasonal:
This vehicle may appear as a listed item in the Forzathon Shop or as a Festival Playlist reward.
Forzathon Shop:
N/A
Festival Playlist:
Series 23 (Spring) - Earn 20 PTS (season milestone)
Series 43 - Earn 80 PTS (Series milestone)
Performance & Car Type
Car Type:
Classic Muscle
Value: 250,000 CR
Rarity:
Common
Speed:
Top Speed: 219.4 mph  (353 km/h)
Acceleration:
0-60 mph (0-97 km/h): 3.052 secs.
0-100 mph (0-161 km/h): 6.521 secs.
Braking:
60-0 mph (97-0 km/h): 83.9 ft (25.6 m)
100-0 mph (161-0 km/h): 206.6 ft (63 m)
Lateral Gs:
60 mph (97 km/h): 1.23 g
120 mph (193 km/h): 1.21 g

Conversions[]

Conversion - Engine
LS7 (7.0L V8) - 2006 Chevrolet Corvette Z06, C5.R 427 (7.0L V8) - 2004 Chevrolet #3 Corvette Racing C5.R
6.2L V8 (G8 GXP)
5.7L V8, 5.9L V8 - Racing
5.7L V8, 5.9L V8 - Racing
6.2L V8, 5.9L V8 - Racing
4.3L I6, 6.2L V8, 3.8L V6-TT, 8.4L V10, 5.9L V8 - Racing
6.2L V8
6.2L V8, 8.4L V10, 6.5L V12
6.2L V8, 8.4L V10, 6.5L V12
6.2L V8, 6.7L V8T Diesel, 8.4L V10, 7.0L V8, 7.7L V12, Racing 7.2L V8, 8.9L V8 DSC
Conversion - Drivetrain
AWD
AWD
AWD
AWD
AWD Drivetrain
AWD Drivetrain
AWD Drivetrain
AWD Drivetrain
Conversion - Aspiration
Twin-Screw Supercharger
Twin-Screw Supercharger
Positive-Displacement Supercharger
Positive-Displacement Supercharger
Positive-Displacement Supercharger
Positive-Displacement Supercharger
Positive-Displacement Supercharger
Positive-Displacement Supercharger
Positive-Displacement Supercharger
Positive-Displacement Supercharger
Conversion - Preset
'73 Trans Am

Trivia[]

Gallery[]

Promotional[]

References[]

  1. "Forza Motorsport 4 - Cars" . forzamotorsport.net (Archived) . Retrieved 09-13-2024.