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Remember the Chevy Chevette? That little econobox your grandma used to drive around town when you were just a kid? Well, forget everything you thought you knew. Believe it or not, this car was once a bestseller. Chevrolet produced the Chevette from 1976 to 1987, selling 2.8 million units. It was even the best-selling small car in the U.S. in both 1979 and 1980. But today, we’ll talk about how this big-block Chevette has been transformed into an absolute beast, and it’s hiding in plain sight.
Nothing says “sleeper” like 13-inch steelies dressed up with dog-dish hubcaps. That single-straw exhaust doesn’t even try to let the rat under the hood breathe properly, but it seals the sleeper theme perfectly!
Reportedly built by Blast From The Past in Pottstown, Pennsylvania, this black hatchback is a perfect example of what car enthusiasts call a “sleeper.” On the outside, it’s all original, in all its non-performance glory. It’s got a stock body, and stock interior, even rocking those classic 13-inch wheels (though they did get a sporty upgrade with redline tires). With all the OEM cues in place, you might think it still has the original 1.4-liter engine under the hood, putting out a whopping 53 horsepower. But you’d be wrong.
The sticker on the air filter says “427,” but we’re not sure we’d even trust that coming from such a subversively constructed sleeper.
Don’t be shocked if you look under the hood, because this Chevette is packing a “427 cubic-inch” engine. That’s right, a big-block that is paired with a Turbo 400 transmission and a narrowed 12-bolt rear end. This classic car is built for serious speed if you’ve got the cajones to ride a washtub that is strapped to a tornado. It’s like someone stuffed a rocket engine into a late-’70s shoebox. And the best part? No one would ever suspect it. It’s the ultimate wolf in sheep’s clothing. Imagine pulling up to a stoplight next to some muscle car, the driver giving you a pitying look. Then the light turns green, and you leave them in a cloud of dust and tire smoke. Priceless!
One of the comments sums up the interior of the 'Vette perfectly, "An interior that would make any Scotsman proud." Those plaid duds go perfectly with the sleeper motif. Just don't go peeking under this econo-box's kilt or you may get more than you bargained for! 
This big-block Chevette has already been turning heads online. A video showcasing the car has generated some hilarious comments. One viewer called it “A street-legal engine stand.” Another simply said, “Overkill.” And also “That’s not a car. That’s the box the engine comes in.” But it’s not just about raw power. This Chevette is a testament to the creativity and ingenuity of car enthusiasts. It shows that you don’t need a fancy sports car to have fun.
Fitting everything into such a tiny package took some careful engineering. The air cleaner fits snugly between the unaltered hood and the intake. While those 13-inch redline tires aren't drag strip heroes, it took a lot of trimming to narrow this 12-bolt differential to make it fit between those stock steel rims. 
In a world dominated by build sheets and here-today-gone-tomorrow trends, sometimes, the most satisfying rides are the ones you don’t expect. So, the next time you see a humble Chevette puttering down the road, take a second look. You never know what might be lurking under the hood. This one might just have a big-block surprise waiting to be unleashed.
