1972 Buick GSX

Sorry, this vehicle has been SOLD. If you were interested in this car and would like us to help find or build you a similar one, please contact us at 847-487-2272.


With the market for muscle car growing fast, and prices going out of sight and to new levels, It's a shame so many enthusiasts overlook the Buick Grand Sport when shopping for an A-body toy. Chevelle's and Pontiac GTOs, sure, but everyone seems to forget that the Buicks like the GS455 made more torque than any other gas engine GM ever built until the arrival of the latest supercharged Corvette ZR1. By 1972, compression was down, but the Buick was still a strong performer, nailing the 14-second quarter mile times at better than 100 MPH, and did it while loaded with luxury features that were not available on its corporate cousins. This stunning Burnished Copper Poly GS Coupe is believed to be one of only 22 built with an automatic and is believed to be the only dealer installed GSX package air-conditioned car built in 1972. This car is a true GS455 car and according to the previous owner and the Sloan Museum VIN Number Documentation this is believed to be a dealer installed GSX package car. This vehicle has an Illinois rebuilt title but the car will not Carfax because as will all classic cars, it is older than 25 years old. With a prize-winning restoration and paint and bodywork that is second to none, this is not a car to be missed for any collector or enthusiast.

While Chevelle's, Hemi's, and the Pontiac GTO's get a lot of attention, they certainly aren't the only game in town….Not by far. Their close cousins have more curves and more cubes, lending them a lasting appeal that resonates in today's collector market. This unbelievably clean GSX was the beneficiary of a professional, road-ready restoration a few years ago and is a great example of why ALL GM muscle cars are so incredible!
But before we get too far, let's decode the VIN and body tag.

VIN: 4G37U2Z115717
4 = Buick
G = GS
37 = 2-door hardtop coupe
U = 455 4 BBL V/8 • H: Flint Michigan assembly plant
2 = 1972 year
Z = Built in Fremont ca.
115717 production number

Now for the body tag:

• ST72 = Model year 1972
• 43437= GS 2-door coupe hardtop
• Z = built in Fremont, California
• 136 = Saddle Vinyl interior
• 03B = built 3rd week of Feb 1972.
• 115717 = Production Number

Born with classic good looks, this Buick's current condition comes courtesy of a complete, frame off restoration that was done a few years ago. This fine Buick is fitted with the correct red lined rocker trim and detailed with red inlayed emblems. At the front of the body, four headlights surround the nice pointed grille that sits behind a body-wide front chrome bumper. Dramatic curves and lines on the hood with the help of a functional ram air create a sinister look. Make your way down the sides of the body and you'll see how the copper hue was, naturally, topped with show-quality chrome, new glass, and straight stainless trim and GSX decals.

Speed is provided by an original 455 cubic inch V8 that creates a stout 360 horsepower. The whole engine assembly is covered in bright red paint and seated between correct, Satin Black fenders. And everything, from the car's dual-snorkel air cleaner to its oil pan, presents with prestige and authenticity. At the top of the engine on the huge air cleaner that rests on a 4-barrel carburetor, you will find 'GS 455 badging. Chrome valve covers accent the red engine and black engine bay quite nicely. The GS Buicks were feared not only for their horsepower ratings, but also the insane amount of torque they would leave the factory with.

Put the car on a lift and you'll see that the big mill is backed by an original GM Turbo-Hydromantic 400 3-speed automatic transmission, with a gear vendors over/under drive, which spins a traditional GM 10-bolt that has 4:11 gears packed inside it. The car's original double A-arm front and 4-link rear suspension, which has been completely rebuilt to factory specifications, features correct power steering. Spent gases flow through aluminized pipes to throaty, dual-chamber mufflers. And at the corners, 15-inch Magnum 500s twist 245/60R15 BF Goodrich Radial T/A's. Behind the tires, power front disc brakes, and rear drum are responsible for slowing the muscle car quickly.

Open the doors and inside this GSX and you'll find greater Buick styling wrapped in a mixture of saddle tan vinyl, bright stainless and rich wood grain appliqué. A luxurious set of bucket seats sporting fresh covers that, judging by appearance, haven't seen much road time. That upscale aura continues onto the dashboard, which offers rebuilt factory gauges and an after market Audio Sound “Buick” AM/FM radio. And hidden inside the glove box a nice upgraded JVC head unit that powers a 6-CD changer unit in the trunk. In front of the driver, a satin-spoked steering wheel laps a subtle “BUICK” horn script. Behind the front seats is an additional bench seat capable of housing two more of your closest friends. Above the seats is a taught saddle headliner, and below new saddle carpet finishes off the look of the interior.

The GSX package was available in 1971 and 1972, though power gradually fell, due to emissions. The package was available in any color and with several power plants up to the 345-hp Stage I. This car has original, “born with the car” numbers matching U-CODE/A9 250hp/455ci V8. Only 124 were sold in 1971 and 44 in 1972, so a real one is a rare find indeed, and verifiable provenance is a must and highly recommended that any interested buyer does their own research. The 1972 GS and GS 455 would be the last of Buick's muscle car line until the Grand National ten years later. While no single year of this generation of Buick GS sold particularly well in their day, they are now remembered as one of GM's premier muscle cars.
The market for authentic, investment grade Buicks is incredibly strong at this time. The Buick 455 GSX has a cult like following that swear by their monstrous horsepower and high torque numbers, and revere them as the fastest sleeper muscle car of all time. Whether that statement is true or not is up for debate, but what isn't up for debate is the fact that these machines are still today some of the most malicious pieces of American Muscle ever to be around in the early 70's. Don't miss your chance to own this incredible piece of American muscle car history.

Rare, fast and truly beautiful, this Buick GSX is for the discerning collector or enthusiast who knows the difference between, “just a nice car,” and truly a great investment-grade vehicle. The Buick's are starting to see more movement after many years of flying under the radar. If you have been on the hunt for something different to add to your garage, this believed to be one of only 22 built with an automatic and potentially a one of only one Air-Conditioned GSX 455 cars built, is truly a hard one to beat!

• Original numbers matching U-CODE/A9 250hp/455ci V8
• Believed to be 1 of only 14 cars
• Complete restoration
• Factory power steering
• Factory Air
• GM Turbo Hydromantic 3-speed automatic transmission
• Covered in GM Code 63 Burnished copper Poly
• GM 10-bolt axle
• Luxurious saddle vinyl interior
• Gear Vendor's Over/Under Drive

This vehicle is being sold as is, where is with no warranty, expressed written or implied. The seller shall not be responsible for the correct description, authenticity, genuineness, or defects herein, and makes no warranty in connection therewith. No allowance or set aside will be made on account of any incorrectness, imperfection, defect or damage. Any descriptions or representations are for identification purposes only and are not to be construed as a warranty of any type. It is the responsibility of the buyer to have thoroughly inspected the vehicle, and to have satisfied himself or herself as to the condition and value and to bid based upon that judgement solely. The seller shall and will make every reasonable effort to disclose any known defects associated with this vehicle at the buyer's request prior to the close of sale. Seller assumes no responsibility for any repairs regardless of any oral statements about the vehicle.

Terms & Conditions

Please note that all sales are binding and final. Our cars are sold "AS-IS" with NO WARRANTY EXPRESSED OR IMPLIED. Please carefully read the terms & conditions of the sale.

The vehicle is available for inspection prior to bidding. BUYERS ARE ENCOURAGED TO CONDUCT a physical inspection to avoid any misunderstandings AND FORM AN INDEPENDENT OPINION AS TO THE VEHICLE IN ALL RESPECTS. Buyer and Seller hereby agree that THE LAWS OF THE STATE OF THE SELLER shall control for all purposes under this AGREEMENT. All above terms and conditions are applied to vehicle sales, whether through this website, eBay, or otherwise.

I strongly encourage all buyers to inspect vehicle personally or enlist the services of a professional inspector prior to making an offer. After the sale, inspections are not recognized as a contingency to completing your obligation to your contract. If you end up winning an eBay auction and not remitting payment, a $250 fee will be charged to cover labor and fees to re-list our item. If there are any questions regarding the above terms, please e-mail prior to bidding. Serious buyers only please. Good luck!

Fee and Tax Information:
As a licensed Illinois dealer, there will be a documentation fee. We are required to collect tax from purchasers residing in the following states:

South Carolina 


Engine Type



Body Color

Burnished Copper Poly

Body Style














Interior Color

Dark Saddle

Center Console


Contact Details