What is the fastest Pontiac ever?
Overview Of The Fastest Pontiac Model Ever: The 2006 Pontiac GTO. The 2006 Pontiac GTO is a fifth-generation Pontiac GTO. It is offered with only a single engine option available — the monstrous 6.0-liter naturally aspirated LS2 V8 engine that generates 400 horsepower at 5,200 rpm and 400 pound-feet of torque.
The 1964 Tempest GTO goes from 0-60 mph in 4.6 seconds, almost as impressive as the Ferrari GTO.
The Pontiac G6 has a top speed of 112 mph.
What about that Pontiac 455 not being a big block? That's right, the 455 was not a big block because Pontiac never had a big block. Or a small block. Throughout its entire existence, Pontiac only ever manufactured a single V8 engine family!
Yes, that's right, a 601-inch Pontiac. A level that until recently has been impossible from this notable breed of engine. Production Pontiacs topped out at 455 cool cubes, and that was ample in the day, but today's aftermarket has made engines of 500-cubes and larger relatively routine.
In 1966 through 1968, 10 Cheetahs received dealer-installed, blueprinted L72 427 V-8s that produced a reported 450 (gross) horsepower. To reach this output, L88 and ZL1 parts were used.
Yet the orphan 350--produced from 1968-1979--is still fairly common, precisely because no one wants them. Pontiac's 350 shares the same external dimensions with its larger brothers. Heads--including Edelbrock's popular aluminum castings--interchange.
For that particular era, it attained higher performance figures than any other vehicle. There have been various models, but the one that stands out as the fastest muscle car of the 60s is the 1963 Shelby Cobra 260. It was able to accelerate from zero to 60 mph in 4.5 seconds.
1968-1981 Pontiac Parisienne. 1968-1970 Pontiac Tempest. 1969 Pontiac Custom S. 1971-1977 Pontiac Catalina.
Aside from styling differences, the last Firebirds were carbon copies of the Camaros down the small block V8s. However, a ram air intake, exclusive to the Trans Am WS6, added 15 more horsepower and lb-ft. of torque, making it slightly faster than the top-of-the-line Camaro SS.