1970 Buick



1970 Buick GSX
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1970 Buick Skylark Yellow Gran Sport GSX

Why This Car Is Special

We have a real-deal 1970 Buick Skylark Gran Sport GSX here at Skyway Classics.

To say that this is a rare Buick is such an understatement. This is the “Holy Grail” of Buick muscle cars!

To begin with, there were only 678 1970 Buick GSX produced of which and 280 which were automatics.

So what makes a GSX a GSX? The GSX is basically a GS-455 with the A9 option group. This includes a hood mount tachometer, power front disc brakes, Rallye Ride Control suspension package, front and rear spoilers, and heavy-duty cooling package. Inside, you get a Rallye steering wheel with Rallye instrumentation, bucket seats, and a custom interior trim package. All this plus a 3.64 axle ratio with posi-traction differential and 7-inch wheels set you back $1,196 for the package.

This was one of the most luxurious muscle cars you could buy. Even though it was a performance car, Buick didn't skimp on amenities and creature comforts when creating this car.

Mechanical Specs

The GSX came standard with a 455 cubic-inch V8 with 350 horsepower and a whopping 510 lb.-ft. of torque and this is what is in our Buick GSX.

Motor Trend flogged a GSX and went from 0 to 60 in 5.5 seconds and realized a time of 13.38 in the quarter mile at 105.5 mph. Not bad for a car weighing almost 4,000 pounds.

Ours is backed by a Turbo-Hydro 400 transmission and has power steering, power assisted front disc brakes, air conditioning, chrome valve covers, the factory ram air cleaner system, tube headers, and all sitting in a very clean painted and detailed engine compartment.


The interior features a pair of black factory bucket seats with headrest and a full console in between that houses the automatic shifter and woodgrain inserts, matching rear seat, Buick three-spoke factory steering wheel, factory dash and gauges, stereo pushbutton radio, seatbelts, black carpet and floor mat.

The trunk is in good order with correct spatter paint as well as trunk mat and spare tire mat.


The 1970 GSX was available in only two colors. 491 were produced in Saturn Yellow and 187 were produced in Apollo White. Both colors came with black body striping that flowed across the top of the front fenders, doors, rear quarters, and rolled over the rear spoiler.

Another standout feature of the GSX was the size of its wheels and tires. Buick installed 7-inch wide Buick Rally wheels and now has Mickey Thompson Sportsman raised white letter tires.

Our 1970 Buick Skylark Gran Sport GSX is finished in the factory correct Saturn Yellow with black and red GSX stripes, factory ram air hood scoops, hood tach, and the GSX rear spoiler.

The yellow paint is bright and has good body lines as well as chrome and trim items, and the exhaust is great with the dual exhaust system exiting out the rear.


The 1970 Buick Skylark Gran Sport GSX we have available here at Skyway Classics is extremely rare and priced accordingly. It is verified by the factory paperwork, Protect-O-Plate, the correct GSX VIN number, the correct Trim Tag paint and interior numbers, and more.

The 1970 Buick GSX offered one of the most impressive “Supercars” of the day and is judged by many as one of the greatest muscle cars ever built.

Now this rare muscle machine can be yours. It is powerful, beautiful, and quite rare and is up for grabs so don't hesitate.

So give us a call at 941-254-6608.



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