1970 Buick GSX 455 Stage 1

DC Classic Cars East
158A Rolling Hill Road
Mooresville, NC
(704) 663-0432

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8 cyl.

Mooresville, North Carolina



Year 1970
Mileage 38459
Engine 8 cyl.
Doors 2
Transmission Automatic
Make Buick
Model GSX

GSX 1970

Title Status Clear
Exterior Color Saturn Yellow
Interior Color Black


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!


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



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