
Buyer Resources
- 1970 Buick GS 455 Coupe
- 455ci V8
- 4-Barrel Carburetor
- 3-Speed Automatic
- RWD
- Gulf Stream Blue Exterior
- Blue Interior
- Edelbrock Aluminum Intake Manifold
- Aftermarket Comp Camshaft
- Aftermarket Headers
- Aftermarket Dual Exhaust System
- Mallory Electronic Ignition System
- Power Disc Brakes
- Aftermarket Booster
- Aftermarket Master Cylinder
- Aftermarket Brake Cylinders
- Aftermarket Fuel Tank
- Aftermarket Rear Air Shocks
- Aftermarket 4-Core Radiator
- Aftermarket Transmission Cooler Lines
- Aftermarket Audio Head Unit
- Aftermarket Bluetooth Stereo System
- Aftermarket Rear Deck Speakers
- 15” Factory Chrome Wheels
- Performance Raised White Letter Tires
- Custom Basecoat/Clearcoat 2-Stage Acrylic Urethane Paint Job In Original Color
- Reupholstered Interior
- Tinted Glass
- Powder-Coated Undercarriage
- Digital Tachometer
- Original Bumpers
- Original Exterior Trim & Moldings
- Original Emblems
- Detailed Underbody & Engine Bay
- Detailed Trunk Compartment
- Spare Tire & Jack Assembly
- Factory Intake Snorkels
- Factory Exhaust Manifolds
Extras Included in the Sale
- Factory Intake
- Factory Carb
- Factory Exhaust Manifolds
The Buick GS 455 remains one of the most respected muscle cars of the golden era, pairing Buick’s reputation for comfort and refinement with the brute force of a massive big-block V8. While many enthusiasts gravitate toward Chevrolet, Ford, and Mopar offerings, the GS 455 has earned a loyal following thanks to its impressive torque output and understated styling. This 1970 Buick GS 455 Coupe shows approximately 94,245 miles and is finished in its iconic Gulfstream Blue color combination. Featuring desirable GS styling cues, performance-oriented upgrades, and a well-appointed interior, this Buick represents a compelling opportunity to own one of the most capable and collectible muscle cars of the early 1970s.
Exterior and Interior
The exterior of this 1970 Buick GS 455 Coupe is finished in Gulfstream Blue and showcases the muscular styling that helped establish the GS as Buick’s premier performance model. The car features a custom paint job completed in its factory-correct Gulfstream Blue color, providing a striking appearance that highlights the GS’s sculpted body lines. Signature features include the GS hood scoop, proper GS decals, original-style bumpers, trim, and emblems, along with 15-inch factory chrome wheels wrapped in performance raised white-letter tires. The car’s aggressive stance is further complemented by aftermarket rear air shocks, while the detailed engine bay and underbody reflect the level of care invested in the vehicle. From every angle, this GS 455 delivers the classic muscle car presence enthusiasts seek. The interior of this 1970 Buick GS 455 Coupe features blue upholstery and a host of custom interior enhancements designed to maintain the car’s classic appearance while improving comfort and usability. Highlights include custom seating surfaces, door panels, headliner, parcel shelf, carpeting, and weather seals. A Bluetooth-compatible stereo system and rear deck speakers provide modern audio functionality, while a digital tachometer and additional instrumentation contribute to the car’s performance-oriented atmosphere. The result is a cabin that blends vintage Buick styling with thoughtful upgrades for enjoyable cruising.
Engine
Under the hood sits a 455ci naturally aspirated V8 equipped with an Edelbrock aluminum intake manifold, Edelbrock 4-barrel carburetor, Comp camshaft, headers, and a custom dual exhaust system. A Mallory electronic ignition system enhances ignition performance, while an upgraded 4-core radiator and transmission cooler lines assist with temperature management. Power is routed to the rear wheels through a 3-speed automatic transmission, delivering the effortless acceleration and abundant torque that made the GS 455 famous. Additional features include power-assisted front disc brakes, an aftermarket master cylinder, aftermarket fuel tank, and aftermarket rear air shocks. Combining legendary Buick big-block performance with carefully selected aftermarket upgrades, this GS 455 offers a rewarding driving experience that remains true to its muscle car roots.
Inspection
This 1957 Buick Roadmaster Riviera 2-Door Hardtop is pure late-1950s American excess in the best possible way, combining dramatic Harley Earl-era styling with the torque-rich character of Buick’s Nailhead V8. Showing approximately 14,574 miles, this example was refurbished in the late 2000s and is finished in Dover White and Bittersweet Red over a Rust and Ivory interior. The car was later upgraded with an Air Lift Performance air suspension system. Add in power steering, power brakes, power windows, a power front bench seat, Hot Rod Air climate control, and wide whitewalls, and this Roadmaster delivers the extravagant look of a flagship ’50s Buick with a few thoughtful upgrades that make it even more enjoyable today.
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