1974 Pontiac Trans Am Super-Duty 455
E nthusiasts beware. The Trans Am Super-Duty 455 is not to be confused with other Pontiac models that came equipped with 455 cubic inch engines – a blessing for true enthusiasts. That’s because the Super Duty 455 is based on the 366 cubic inch engine created by Pontiac for use in NASCAR. Although designed for racing, the eventual SD 455 was “adjusted” to meet federal requirements so it could be used in the Trans Am Super-Duty model.
In the minds of many, this exuberant limited-production Trans Am model is the very last in a long and glorious line of American muscle cars that were produced beginning in the early ‘60s and marked by some of the most outrageous and exciting street machines ever imagined.
All SD 455 engines were hand assembled and came equipped with a reinforced block, special camshaft, aluminum pistons, oversize valves and exhaust manifolds that more closely resembled headers. Although the SD 455 engine was rated at 310 horsepower, it more likely produced closer to 370 horses, prompting enthusiasts to describe it as “a street-legal race-prepared engine.”
Along with an adrenaline-pumping engine, the Trans Am Super-Duty came in a comfortable, sporty package that has aged well in today’s world. There were 953 of these pulse-racing '74 Trans Ams built with the Super Duty 455 package. Great VIDEOS at right . -Wayne Lawrence
Find your Trans Am at bestofshowautomotive
Save hundreds on your auto insurance. It's easy. It's free. And there's no obligation. Get a free quote now!
Get a Free Quote.
The best deals in performance auto parts. Plus save money on replacements parts and auto body parts.
FREE SHIPPING on orders over $99
We're loaded with parts and accessories. Save up to 40% off List price. Free shipping with no minimum purchase (restrictions apply). See site for details!
Up to 40% Off List
Huge selection of quality, collectible diecast models. Classic cars. Muscle cars. Racing. Old brands. Find your favorites! Great deals. Wholesale diecast car models. Shop now!
Classics. Muscle. Racing & More. Rare Models!
Buy one night, get one night FREE at Holiday Inn with your Enterprise car rental. Great Cars. Low Rates. Free Pick-up.
We'll Pick You Up! Low Rates
Shop by your vehicle's make, model and year to find exactly the right parts and accessories. Plus, we're making a commitment to you with our industry-leading 1-year guarantee on more than 6 million parts and accessories. Shop now!
New, improved, better than ever website!
Car Audio Systems. GPS Navigation. Mobile Video Systems. Radar Detectors. Handy online tool to learn "What Fits Your Vehicle." All Major Brands. Shop Now!
Free shipping on thousands of electronics!