1973 Pontiac Trans Am

1973 PONTIAC TRANS AM SQUEAKS BY ONE MORE YEAR
By 1973, not only was horsepower sinking fast, but ever-stricter crash-safety laws were forcing manufacturers to adopt some gawdawful-ugly designs to comply. Clever engineering and extra bracing got both the Camaro and the Firebird/Trans Am to pass the new 1973 frontal impact standards without completely redesigning the front end, as was required on the Corvette. But they only forestalled it one more year, as the 1974 Firebird and Trans Am would grow a very ungainly ‘shovel nose’ in order to cover the newly-required 5 mph telescoping front bumper system. That makes 1973 the last year of the original, elegantly beautiful design of the early 2nd-gen cars. And the look changed very little from the 1972 model year, with only minor trim and detail changes.

Newer model cars have much stricter safety ratings than those required in the 70's. A vehicle with a high safety rating would be recommended by any Columbus OVI lawyer in addition to other safe driving practices.
1973 PONTIAC TRANS AM ABOUT TO CHANGE
This would be the final year of this look for the 2nd-gen Pontiac Firebird and its sister-car, the Chevy Camaro. Due to ever stricter crash-safety laws, both cars were forced to abandon their elegant front ends in favor of a new, and most would agree, less-attractive, 5 MPH front bumper system. The Camaro's bumper showed, but Pontiac, true to form, molded theirs into a one-piece plastic nose cone. It was certainly more attractive than the Camaro's, but not nearly as pretty as this car. The 1970 to 1973 Pontiac Trans Ams are regarded by many, myself included, as THE most attractive and desirable Trans Ams of all time.

1973 Pontiac Trans Am INTERIORS


1973 Pontiac Trans Am ENGINES

'73 TRANS AM GETS THE SUPER DUTY 455
For the first time since 1970, 2 engine options were offered on the Trans Am. Both were 455s, a standard version, and a Super Duty 455 or SD-455, which had a strengthened block, 4-bolt mains, forged rods and pistons, and high flow heads. But with the mild cams and low compression (7.9:1) required to meet tightening emissions regs, it still only made 290hp. It begs one to ask why they needed all that block-strengthening. Even the hood scoops were non-functional. All that being said, they were still good for a high-14 second run through the quarter at around 98mph. The lesser version of the 455 was rated at 250hp. The 400 V8 option was dropped. Base Firebirds came standard with the 250ci 6-cylinder, with a 350 V8 as an option. As was par for the course in 1973, all were suffering the withering effects of smog-dogging.

BELOW: You can see the diagonal bracing on the front corners of the engine bay, running from above the wheelhouse to the front radiator support. This was part of the engineering magic that got the '73 through the latest round of frontal-impact crash tests without changing the whole front end and thus the look of the car. However, stricter rules forced these changes the following year.

1973 Pontiac Trans Am WINDOW STICKER


1973 Pontiac Trans Am PRODUCTION NUMBERS

MODEL                                

1973 Trans Am 455

1973 Trans Am SD455

Total '73 Trans Am production

w/MANUAL

1,420

72

w/AUTOMATIC

3,130

180

    TOTAL   

4,550

            252

4,802


1973 Pontiac Trans Am SPECIFICATIONS

Wheelbase

Length

Width

Height

Track, front

Track, rear

Weight

ENGINE OPTIONS

455ci V8 w/1X4bbl

455ci V8 w/1X4bbl SD455

PERFORMANCE

250hp 455 V8

108.0 in / 2743 mm

191.6 in / 4867 mm

73.1 in / 1870 mm

50.2 in / 1276 mm

61.3 in / 1556 mm

60.5 in / 1537 mm

3,197 lbs / 1450 kg


 250 hp / 370 lb/ft net

  310 hp / 390 lb/ft net


Zero-to-60mph = NA












1/4-mile = 13.5 sec @ 104.3 mpH


OTHER FIREBIRD & TRANS AM PAGES:
..........PONTIAC
....................Firebird/TransAm
..............................1967
..............................1968
..............................1969
..............................1970
..............................1970 Trans Am
..............................1971
..............................1971 Trans Am
..............................1973
..............................1973 Trans Am
..............................1974
..............................1976
..............................1976 Trans Am
..............................1977 Trans Am
..............................1978 Trans Am
..............................1979
..............................1987 Trans Am GTA
..............................1989
..............................1999 Trans Am

Check out these FIRBIRD & TRANS AM BOOKS


Pontiac Trans Am: 50 Years



Pontiac Firebird: 50 Years



Original Pontiac Firebird and Trans Am 1967-2002: The Restorer's Guide (Original Series)



Pontiac Firebird - The Auto-Biography: New 3rd Edition (Made in America!)



Pontiac Firebird Ads: From the Beginning 1967 - 2002



The Definitive Firebird & Trans Am Guide: 1970 1/2 - 1981



Pontiac Firebird: The Auto-Biography (Car & Motorcycle Marque/Model)



Pontiac Firebird Restoration Guide 1967-1969



Original Pontiac Firebird and Trans Am 1967-2002: The Restorer's Guide (Original Series)



How to Rebuild Pontiac V-8s (Workbench)



Trans Am & Firebird Restoration: 1970-1/2 - 1981 (Restoration How-to)



The Pontiac Firebird Anthology 1967 - 2002



Pontiac Firebird 1967-2000




Auto Parts Warehouse

PLEASE LOOK AROUND AMERICAN-MUSCLE-CARS.NET:

HOME PAGE
ABOUT US
CONTACT US
SITE MAP
CLASSIC CAR SHOWS
CLASSIC CAR EVENTS CALENDAR
CLASSIC CAR MUSEUMS
CLASSIC CAR AUCTIONS
CLASSIC CAR DEALERS
CLASSIC CAR VIDEOS

AMERICAN MUSCLE CARS:

GENERAL MOTORS
.....CHEVROLET
...............Camaro
...............Chevelle SS
...............El Camino SS
...............Corvette
...............Impala SS
...............Nova
...............Tri-Five Chevy (1955-1957)
...............Nomad (1955-1957)
...............Chevy Small Block V8
...............Chevy Big Block V8
.....PONTIAC
...............Firebird
...............Trans Am
...............GTO
...............Grand Prix
.....OLDSMOBILE
...............Olds 442
.....BUICK
...............Skylark GS/Grand Sport
...............Grand National/GNX
...............Riviera
FORD MOTOR COMPANY / FOMOCO
.....FORD
...............Mustang
...............Thunderbird
...............Fairlane
...............Torino
...............Galaxie
.....MERCURY Cougar
...............Ford Engines
.....SHELBY-AMERICAN
MOPAR/CHRYSLER PRODUCTS
.....DODGE
...............Challenger
...............Charger
...............Coronet
...............Super Bee
...............Viper
.....PLYMOUTH
...............Barracuda
...............Duster
...............Roadrunner
...............GTX
...............Superbird
AMERICAN MOTORS / AMC
..........Javelin/AMX
MODERN MUSCLE CARS, 2000 and newer
MUSCLE CAR ENGINES
COP CARS

STORES:

.....Car Books
.....Car Magazines
.....Car Calendars
.....Diecast Cars

CONTACT US


Do you like Classic British Motorcycles? Check out our sister site at:

www.Classic-British-Motorcycles.com



Back to top
Last updated 4/18/18

Learn how to build your own WEBSITE, like I did.



HOT AUGUST NIGHTS
IS ALMOST HERE!



MOPAR ALLEY'S
MOPAR RALLY



AMERICAN GRAFFITI FESTIVAL



SCOTTSDALE AUCTION WEEK coverage 

xBarrett Jackson 2018


check out our new NATIONAL
CLASSIC CAR DEALER DIRECTORY

CARS


the new
2019 MUSTANG
BULLITT!

Black car


NEW PAGE:
Chrysler Hemi

xChevy small block v8

MUSCLE CAR ENGINES




2018 Collector Car Price Guide

152xNx2018 Car Calendars

The 2018 Car Calenders are here! ORDER NOW



Visit our online
BOOK STORE
for Car Nuts




Hemmings Motor News

Get your
CAR MAGAZINES
here




NEW PAGES
BUILT THIS MONTH

1996 Dodge Viper GTS
Mopar Alley Mopar Rally 2018
1967 Ford Ranchero
Ford Ranchro
1969 Ford Ranchero
1968 Ford Ranchero
1957 Ford Ranchero
American Graffiti Festival 2018
Goodguys Car Show, June 2018
Goodguys Car Show-June 2018
Hot August Nights 2018
Mopar Hemi
2017 Trans Am
1994 Pontiac Trans Am
1992 Chevy Camaro
1987 Chevy Camaro IROC-Z
Chevy Camaro Books
2003 Ford Mustang Mach 1
1999 Ford Mustang SVT Cobra
2009 Chevy Corvette
2004 Chevy Corvette
1996 Chevy Corvette
1994 Chevy Corvette
1995 Chevy Corvette
1976 Chevy Corvette
1985 Chevy Corvette
1988 Chevy Corvette
1981 Chevy Corvette
1991 Chevy Corvette ZR1
1993 Chevy Corvette
2019 Chevy Corvette ZR1
2003 Chevy Corvette
1980 Chevy Corvette
2000 Chevy Corvette
LS-series Chevy Small Block
2002 Ford Mustang GT
2012 Chevy Camaro COPO
More new pages coming all the time...
Keep checking back!