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Sales: 704-663-0432

About This Buick

1970 Buick GSX STAGE 1


Condition Used Clear Title
Miles 38,459
Engine GS 455 V8
Transmission 3 Spd Automatic
Drivetrain Rear Wheel Drive
Exterior Color
Saturn Yellow
Interior Color
Stock # 1998
VIN # 446370H284650
Warranty As-Is
Some of our used vehicles may be subject to unrepaired safety recalls. Check for a vehicle’s unrepaired recalls by VIN at
City MPG
Actual rating will vary with options, driving conditions, habits and vehicle condition.

Vehicle Overview

There's no denying that 1970 was the pinnacle for the Muscle Car era. You had Chevrolet packing 450hp into their LS6 Chevelle, Mopars were regularly shoving dual quad 426 hemis off the line with 425hp, and Ford's BOSS 429 is the stuff of legends. However, one manufacturer got lost in all the advertised Horsepower wars of the early 70's. The Buick GS line, specifically their Stage 1s, packed a 455ci V8 inside a GS and while they didn't have the advertised high horsepower numbers, they had every other manufacturer beat by a mile in a less flashy statistic - Torque. The GS 455 Stage 1 left the factory underrated at 360hp, but they created an enormous 510 ft. lbs. of torque from factory! That GS 455 Stage 1 factory engine's torque rating would stand as the most torque from factory by an American car manufacturer for over 33 years until it was surpassed in 2003 by a V-10 Viper.  
If that wasn't enough for you, Buick offered one rare option above there GS - The GSX. Only problem was, Buick was late to the Muscle Car party, and by the time they unveiled the GSX Stage 1 in February of 1970, they had no way of advertising it as all the catalogs for the year had long been printed. So a mere 400 1970 Buick GS 455 Stage 1 GSXs were produced in 1970. Of those, 118 had 4-speed manuals, and 282 were equipped with the optional BB-coded TH400 automatic... This beautifully restored 1970 Buick GSX Stage 1 is one of those rare 282!

Just finished in October of 2016, this GSX is the recent recipient of a 5-year, $130k restoration performed by the team at Then and Now Automotive. Today it sits in near perfect factory condition with less than 500 miles on the restoration. We see a lot of muscle cars here at DC Classics and trust us - It doesn't get much better than this GSX!  

Fresh correct Saturn Yellow Paint was applied to the body and then was buffed and wet sanded to perfection. Originally found in 2012 in a storage unit, the current owner commissioned the restoration. There was small amounts of rust on the trunk pan, and quarter panels that after further inspection after the car was disassembled the team made the call to replace the trunk pan and both quarter panels with OEM equipment. The entire restoration is fully documented with receipts that detail the level of top notch quality. 

Inside the engine compartment you'll find what is believed to be the original 455ci V8. Close inspection reveals the correct SS engine stamp that reveals its a correct 1970 stage 1 455. During the restoration, the restoration team painstakingly disassembled the entire car and driveline and over the next 5-years restored the vehicle to better than factory standards. Anything that wasn't correct to the car they would replace with only GSX or Stage 1 correct parts. For example, the team had to find a correct distributor for this engine, when they finally found the correct ?1112016? cast distributor, they had to pay $1,500 for the distributor alone. They also sourced a date code and a correct BB coded '70 TH400 specific to a Stage 1 GSX. 

Whether you are a part of the Buick faithful, or are just a fan of old school muscle, you have to admit... It doesn't get much more rare than this! Don't miss out on your chance to own a part of history. Call Today! 

  • #266 1970 GSX Produced. 
  • Factory GSX Stage 1 455ci V8, Auto 
  • Originally ordered in 4/21/70 
  • Listed in GSX Registry and has Historical Society documentation 
  • Complete 5-year Rotisserie Restoration restored by Then and Now automotive, finished in October of 2016. FULLY DOCUMENTED WITH RECEIPTS FROM RESTORATION.
  • Over $130,000 was spent during the restoration alone.  
  • Factory correct Saturn Yellow 
  • Factory Options: 
    • A-X - (A-9 & A-1) GSX & Stage 1 Performance option includes A-9 and Stage 1 Engine (High Performance 455 cu. in. modified V8 engine with low restriction dual exhaust system.) 
    • A-9 Includes 
      • Distinctive GSX Hood and Body Stripes 
      •  Front and rear spoiler 
      • GSX ornamentation decal on rear spoiler and rear quarter
      • GSX Grille and instrumnet panel with distinctive GSX Black Stripes 
      • Color - Coordinated Headlamp Bezels 
      • Outside Right and Left color coordinated racing mirrors 
      • Hood Tachometer 
    • ?B-2 Turbo Hydra-Matic 400 Transmission 
    • B4 Full Length Console 
    • C-1 Power Disc Brakes 
    • F-7 Super Wide Oval/White Billboard Lettered Tires  
    • G-1 Performance Axle with Positive Traction 3.42 ratio 
    • H-6 Rally Ride Control Package and Firm Ride Springs and REar Lower Control Arm Assembly 
    • L-2 Soft Ray Tinted Glass
    • U-9 Instrument Gauges and Rally Clock 
    • X-2 Rally Steering Wheel  
    • 3-N - Special Paint
  • Ordered with Factory Radio Delete 
  • Ordered without A/C 

Air Conditioning         NA
Heater                      YES
Speedometer            YES
Oil PSI Gauge          YES
Temperature Gauge   YES
Fuel Gauge              YES
Tachometer              NA
Wipers                    YES
Horn                       YES
Radio                      NA
Headlights               YES
Tail Lights                YES
Brake Lights            YES
Reverse Lights         YES
Turn Signals            YES
Runs & Drives         YES
  • We can assist with shipping right to your door, Worldwide!
  • Please keep in mind we are in Mooresville, North Carolina which is in the Eastern Time Zone.
  • Contact our sales staff at 704-663-0432 or
  • Please note that all sales are binding and final. Our cars are sold as is with no warranty.

Financing Information

We recommend the following for any of your financing needs

Collector Car Lending
J.J. Best Banc & 

Insurance Information

We recommend Hagerty for insurance purposes

Collector Car Lending

Warranty Information

This Vehicle is Being Sold "As-Is." No extended warranty available for this vehicle.


Contact Us at 704-663-0432

Shipping Information

We will gladly arrange a free shipping quote for any vehicle. Open or Enclosed trailer. Local or Worldwide.
Contact us at 704-663-0432.

DC Classic Cars East

158A Rolling Hill Road , Mooresville, NC 28117

Call Us About This Vehicle: 704-663-0432

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Hours of Operation

Monday: 8 a.m. - 5:00 p.m.
Tuesday: 8 a.m. - 5:00 p.m.
Wednesday: 8 a.m. - 5:00 p.m.
Thursday: 8 a.m. - 5:00 p.m.
Friday: 8 a.m. - 5:00p.m.
Saturday: 9 a.m. - 1:00 p.m.
Sunday: By Appointment

Options & Features

Ext / Int Color
  • Saturn Yellow with Black Vinyl Interior
Luxury Features
  • Wood Trim
Power Equipment
  • 12v Power Outlet
  • Power Steering
Safety Features
  • Power Brakes
  • Center Console
  • Clock
  • Sport Seats
  • Tachometer
  • Accent Stripes
  • Body Side Moldings
  • Rear Spoiler

Vehicle Condition

  • As-Is - Not covered by a warranty. Contact seller for details.
It is the customer’s sole responsibility to verify the existence and condition of any equipment listed. Neither the dealership nor eBizAutos is responsible for misprints on prices or equipment. It is the customer’s sole responsibility to verify the accuracy of the prices with the dealer, including the pricing for all added accessories.