Make:
Pontiac
Model:
Trans Am
Country:
USA
Region:
CA
City:
Bakersfield
Zip:
93303
Body Style:
Coupe
Year:
1973
Mileage:
10400
Miles
Transmission:
Automatic
Fuel:
Gasoline
Doors:
2
Color:
White
Condition:
Used
SD455, Original/Unrestored Time Capsule Quality 1973 Trans Am SD455, Cameo White Exterior, Oxblood Deluxe/Custom Vinyl Interior, Only 10K (Yes 10K ) Original Miles Since New, Original Numbers Matching SD455 LS2 Engine, Original Numbers Matching TH400 Automatic Transmission, Loaded Up With Options Including Factory Air Conditioning, Power Windows, Tilt Wheel, Front Console, Custom Trim Group, Soft Ray (Tinted) Glass, Plus Much More, One Of Only 180 Super Duty Trans Am's Produced In 1973 With The TH400, Original/Unrestored Muscle Cars Like This Are Highly Coveted By Collectors Where Originality Trumps Everything, They're Original Only Once!!
Background
With the 1973 model year came lots of bad news in emissions regulation, safety standards and gas prices, but to true the Pontiac aficionado these problems were all over-shadowed by a single tidbit of good news from PMD: 1973 was the year of the Super Duty.
The 455SD was, arguably, the greatest Pontiac engine ever bolted together. The block has reinforced main bearing webs and 4-bolt mains. It used strong forged steel connecting rods that were held onto the heavy-duty nodular iron crank by 7/16-inch bolts. Pistons were TRW forged pieces, and the oiling system used a 80-lb. Spring in the high-volume pump, screw-in oil plugs in the block and had a provision for a dry-sump pump. The distributor’s oil pump drive gear was oversized as well.
The cam was 301/313 duration with .406-inch lift when installed with the SD’s 1.50 ratio rockers. The heads were big round port jobs that used the familiar 2.11/1.77-inch tulipped and swirl-polished valves that resided in 111cc chambers, yielding 8.4:1 compression. The intake, specific to the engine was an iron unit with EGR provision, which mounted an 800-cfm Rochester Quadrajet carburetor. Stream-lined iron headers, 2.5 inch head pipes, dual resonators and 2.25 inch tails enhanced exhaust flow. Car and Driver got 13.8 ET's out of an automatic-equipped Trans Am running a 3.42 gear back in 1973
Background
With the 1973 model year came lots of bad news in emissions regulation, safety standards and gas prices, but to true the Pontiac aficionado these problems were all over-shadowed by a single tidbit of good news from PMD: 1973 was the year of the Super Duty.
The 455SD was, arguably, the greatest Pontiac engine ever bolted together. The block has reinforced main bearing webs and 4-bolt mains. It used strong forged steel connecting rods that were held onto the heavy-duty nodular iron crank by 7/16-inch bolts. Pistons were TRW forged pieces, and the oiling system used a 80-lb. Spring in the high-volume pump, screw-in oil plugs in the block and had a provision for a dry-sump pump. The distributor’s oil pump drive gear was oversized as well.
The cam was 301/313 duration with .406-inch lift when installed with the SD’s 1.50 ratio rockers. The heads were big round port jobs that used the familiar 2.11/1.77-inch tulipped and swirl-polished valves that resided in 111cc chambers, yielding 8.4:1 compression. The intake, specific to the engine was an iron unit with EGR provision, which mounted an 800-cfm Rochester Quadrajet carburetor. Stream-lined iron headers, 2.5 inch head pipes, dual resonators and 2.25 inch tails enhanced exhaust flow. Car and Driver got 13.8 ET's out of an automatic-equipped Trans Am running a 3.42 gear back in 1973
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