In 1966, only ten lucky individuals had the opportunity to own the rare and powerful 1966 Plymouth Belvedere II 426 Hemi Convertible. This remarkable muscle car, with its iconic Hemi engine, made a significant impact on the automotive world, both on the racetrack and on the streets. In this article, we will explore the fascinating history, design, and performance of this exceptional vehicle, taking a closer look at what made it so special during its time.
The Birth of the Hemi Engine
Chrysler’s Hemi engines have a storied history that dates back to the late 1950s. However, it was in 1964 when the 426 Hemi engine, also known as the “generation two” Hemi, was introduced. These engines earned the nickname “race Hemis” because of their dominance on the NASCAR circuit. With a 12.5:1 compression ratio, aluminum heads, and a single four-barrel race carburetor, they were built for speed and power.
The remarkable performance of the 426 Hemi engines in the 1964 Daytona 500 prompted NASCAR to introduce the homologation rule. This rule required manufacturers to offer a street version of the race engine to the public. As a result, in 1966, Chrysler launched the street Hemi version, still packing a punch with 425 horsepower and 490 foot-pounds of torque.
The 1966 Plymouth Belvedere II Convertible
The 1966 Plymouth Belvedere II Convertible stood out as a remarkable representative of its era’s muscle cars. With its dominant 426 Hemi engine, this convertible packed a serious punch, making it a force to be reckoned with on the streets. The raw power and performance capabilities of the Belvedere II Convertible were enough to turn heads and capture the hearts of speed enthusiasts and muscle car aficionados alike. However, what truly set it apart was its unexpected and distinctive color choice—metallic mauve—a surprising yet alluring hue that added a touch of uniqueness to its already powerful presence.
Beyond its engine prowess, the Plymouth Belvedere II was ingeniously designed with aerodynamics in mind, particularly for its hardtop versions optimized for NASCAR racing. The seamless combination of an aerodynamic shape and the robust 426 Hemi engine contributed to its reputation as a formidable contender on the race track. This muscular machine not only looked striking but also performed exceptionally, solidifying its position as an iconic and versatile muscle car that excelled both on the road and on the racing circuit.
With its dynamic blend of power, distinct appearance, and top-notch engineering, the 1966 Plymouth Belvedere II Convertible remains a shining example of the golden era of American muscle cars. Its combination of brute force and surprising aesthetics makes it a standout in the history of automotive excellence, leaving an indelible mark on the hearts of enthusiasts and ensuring its place in the annals of classic muscle car lore.
The Magnificent Hemi Engine
The Chrysler Hemi engine earned its moniker “elephant” for a good reason – its massive size and formidable power. Boasting an impressive 426 cubic inches displacement and a high 10.25:1 compression ratio, the street Hemi engine roared with a jaw-dropping 425 horsepower. With such immense power under the hood, it felt as if a hulking linebacker was ready to charge forward, delivering an exhilarating and awe-inspiring driving experience.
One of the most notable features of the Hemi engine was its unique hemispherical combustion chambers. The distinct dome-shaped design strategically placed the spark plug in the center of the chamber, optimizing airflow through the intake and exhaust valves. This clever engineering allowed for efficient and controlled combustion, contributing significantly to the engine’s astonishing power output. The Hemi’s design was a testament to Chrysler’s commitment to pushing the boundaries of automotive engineering and achieving unparalleled performance.
The Chrysler Hemi engine quickly became a legendary powerhouse, dominating racetracks and streets alike. Its raw power and innovative design captured the imaginations of car enthusiasts and solidified its place as one of the most iconic and sought-after engines in American automotive history. Whether roaring on the track or rumbling through city streets, the Hemi engine’s unmistakable presence left an enduring impression, making it a true symbol of American muscle car excellence.
Rarity and Authenticity
Chrysler produced only ten Hemi-powered 1966 Belvedere II Convertibles, making them exceptionally rare. Among those ten, only six were equipped with automatic transmissions, and this particular model we are examining falls into that exclusive category.
The metallic mauve exterior of this Belvedere II is a rarity in itself. It was an unconventional choice for a high-performance muscle car, which makes this particular vehicle even more special.
To ensure the authenticity of this unique muscle car, Galen Govier, a renowned authority on Mopar vehicles, conducted a detailed IBM computer car decode. The findings confirmed that this Belvedere II Convertible was indeed built in the metallic mauve color, making it an authentic and well-documented piece of automotive history.
Conclusion
The 1966 Plymouth Belvedere II 426 Hemi Convertible stands as a testament to the golden age of American muscle cars. With its rare Hemi engine, striking metallic mauve color, and outstanding performance, it continues to captivate car enthusiasts and collectors alike. This unique vehicle represents a fascinating era in automotive history when power, speed, and style converged to create automotive legends.
