How much horsepower does a 1973 Trans Am 455 have?
How much horsepower does a 1973 Trans Am 455 have?
310
And that power flows off the crankshaft in astounding quantities, an impressive total of 310 net horsepower. The secret to that power, if it is a secret, is that the engine can inhale all the air-fuel mixture it needs.
What year Trans Am had the 455?
1973
In 1973 and 1974, the 455 was offered as a special version called the Super Duty 455 (SD-455). This model was unique because it consisted of a strengthened cylinder block including four-bolt main bearings along with added material in different locations for additional strength.
Which Trans Am was the fastest?
The 15 Fastest Cars Pontiac Ever Produced
- 1 2006 Pontiac GTO (175 mph)
- 2 2009 Pontiac G8 GXP (175 mph)
- 3 1998 Pontiac Firebird Trans Am (165 mph)
- 4 1963 Pontiac Tempest Super Duty (163 mph)
- 5 1973 Pontiac Firebird Trans Am 455 Super Duty (155 mph)
- 6 2005 Pontiac Grand Prix GXP (143 mph)
What cars had the Pontiac 455?
The Pontiac 455 V8 was The GTO and Firebird Brand’s Last “Big Block” Of the three 455 cubic inch V8 engines offered by General Motors in 1970, the Pontiac 455 took the most unusual route to the market.
Is the Pontiac 455 a good engine?
Despite only two years in production run, the 455 H.O. is regarded by many Poncho experts as the most versatile street engine Pontiac ever produced. Gobs of low-rpm torque make it quite responsive in normal driving conditions, and it can instantly turn tires into a smoky haze by standing on the throttle.
Is a Pontiac 455 a good engine?
How much horsepower does a 455 olds have?
Factory horsepower ratings ranged from 310 all the way up to 400 ponies, with 500 lb-ft the most common torque figure. The Cutlass would benefit from the hottest versions of the 455, starting right out of the gate with 1968’s Hurst/Olds, a 390hp special model with a more aggressive camshaft and carb setup.
Which is faster G8 or GTO?
The GTO is faster. 40 more hp and 270 lbs lighter. The G8 should handle better than a stock GTO, but not a pedderized GTO.
Why was the Pontiac Trans Am Made in 1973?
By 1973, insurance rates on muscle cars had gone up making automakers not want to produce them anymore. Muscle cars were known as gas guzzlers, also making them harder to afford. All that aside, Pontiac still decided to create the Trans Am for 1973. Against all odds, this muscle car turned out to be extremely popular.
Is the Pontiac Trans Am 455 a new engine?
The Super Duty 455 engine was based on the existing 455 V8 so it wasn’t considered a new engine design. With that being said, the Super Duty only had to pass the emissions test after a 4,000-mile break in period and did not have to go the full 50,000 miles.
When did the Pontiac Firebird SD-455 come out?
Available as an option on both Trans Ams and Firebird Formulas for the latter half of 1973 and again for 1974, the SD-455 almost didn’t see the light of day as a management change at Pontiac ushered in new bosses who saw little worth in what was then the fading performance-car business.
What kind of car was the Pontiac 455?
In 1973 and 1974, the 455 was offered as a special version called the Super Duty 455 (SD-455). This model was unique because it consisted of a strengthened cylinder block including four-bolt main bearings along with added material in different locations for additional strength.
