The 1970 Buick GSX 455 coupe represents a pinnacle of the muscle car era, combining luxury with brute force. Buick introduced this high-performance package mid-year to compete with the most aggressive street machines of the day. This specific Apollo White example has been under the care of its current owner for twenty-five years. It underwent a comprehensive refurbishment in 2005 that revitalized its iconic aesthetic and mechanical components. With its signature black stripes and hood-mounted tachometer, it remains a definitive piece of Flint, Michigan, automotive history.
Striking Apollo White Aesthetics and Bodywork
The exterior of this vehicle is finished in the quintessential Apollo White with bold black accent stripes. During its restoration, the lower rear quarter panels and glass were replaced to ensure a crisp, show-quality finish. Every hallmark of the GSX package is present, including the front spoiler and the prominent rear wing. Sport mirror housings and a twin-scoop hood further emphasize the aggressive stance of this heavy-hitting Buick. These visual elements were designed to inform every other driver on the road that this was no ordinary Gran Sport.
Bespoke Interior with Horseshoe Shifting
Inside the cabin, you will find front bucket seats upholstered in premium black vinyl from Legendary Interiors. A full-length center console houses the famous horseshoe-style shifter, which is a favorite among vintage Buick enthusiasts. Woodgrain trim accents the dashboard and console to provide a touch of the luxury Buick was known for. While the air conditioning system uses R134a refrigerant, it currently requires a charge to become fully functional. A retro-look audio receiver with a CD changer has been neatly integrated for a better soundtrack on the road.
Robust Chassis and Refined Handling Upgrades
This 1970 Buick GSX 455 coupe sits on 15-inch Rallye wheels wrapped in period-correct Goodyear Polyglas GT tires. Power steering and power-assisted front disc brakes provide the driver with modern confidence during spirited weekend drives. The chassis utilizes a 12-bolt rear end equipped with Strange axles to handle the immense torque of the big-block engine. Underneath, Mickey Thompson scavenger headers lead into an X-pipe midsection and MagnaFlow mufflers for a deep, rhythmic exhaust note. These upgrades ensure the car is as capable on the street as it is on the show field.
Big Block Performance and Engine Specifications
The heart of this machine is a replacement 455-cubic-inch V8 engine that breathes through a functional ram air induction system. It produces a massive amount of low-end torque, which was a trademark of the Buick 455 powerplants in 1970. The engine has been enhanced with an uprated camshaft and rocker arms to provide even better throttle response. Power is sent to the rear wheels via a recently overhauled TH400 three-speed automatic transmission. This drivetrain configuration allows the heavy coupe to accelerate with a level of authority that few contemporary rivals could match.
A Documented Legacy for the Serious Collector
The value of this 1970 Buick GSX 455 coupe is further bolstered by its extensive historical documentation. It comes with two original build sheets, a reproduction window sticker, and the factory Protect-O-Plate. These items verify its production at the Flint assembly plant during the third week of May. The car also includes its original owner’s manuals and service records from its long-term twenty-five-year ownership. It represents an honest and well-maintained example of a vehicle that helped define the upper echelon of American muscle.
Disclaimer: Content on this site is for informational and entertainment purposes only. Details, analyses, and opinions reflect current trends and personal views, not professional or financial advice. Always verify information with official sources before making any decisions.
Source: bringatrailer.com
