1968 Chevrolet Chevelle SS: A Green Machine with 840 Horsepower!
Posted by D. Brian Smith on Nov 12th 2026
Some muscle cars make a statement before their engines ever fire. Others let their horsepower do the talking. Eric Domanic's green 1968 Chevrolet Chevelle SS manages to do a bunch of both.
At first glance, the 1968 Chevelle SS represents everything enthusiasts love about Chevrolet's golden age of American muscle. Its muscular body lines, long hood, and purposeful styling helped establish the second-generation Chevelle as one of the most recognizable performance cars of the late 1960s.
But Eric's Chevelle has something considerably more potent than the big-block engines Chevrolet offered when the car was new.
632 Cubic Inches of Big-Block Chevrolet Muscle
Above and below: The 632 cubic inch Chevrolet V8, built by BluePrint Engines in Kearney, Nebraska, delivers 840 horsepower. If you can believe it, the engine sounds even better than it looks! A Holley Sniper EFI system and Sniper brushed aluminum valve covers adorn the Chevelle's engine in looks and performance. For keeping things cool in the engine room, there's an aluminum radiator. A Vintage Air HVAC system keeps the Chevelle's cockpit occupants comfortable year round. The mill's backed by GM's stout 4L80E four-speed automatic transmission.
Under the hood resides a massive 632-cubic-inch BluePrint Engines V8, reportedly producing an impressive 840 horsepower.
That's right, 840 ponies!
For perspective, Chevrolet's legendary 1968 Chevelle SS 396 was advertised with as much as 375 horsepower in its highest-rated factory configuration. Eric's big block delivers more than twice that figure.
And while horsepower numbers are certainly impressive, there's something especially appealing about the displacement itself. At 632 cubic inches, this Chevy V8 displaces more than 10 liters. That's a whole lot of American iron, or, more accurately, a whole lot of American muscle.
According to Eric's submission to Classic Industries, the engine was built in the USA in 2019. He also identifies the transmission as a General Motors 4L80E, a heavy-duty four-speed automatic commonly selected for high-horsepower street machines.
It's the sort of powertrain combination that gives a vintage muscle car thoroughly modern performance potential while preserving the unmistakable character of a big-block Chevrolet V8.
A Classic Chevelle with Serious Attitude
The 1968 model year marked a significant redesign for Chevrolet's popular Chevelle. A shorter wheelbase, sweeping rear quarters, and a more aggressive profile gave the second-generation A-body a fresh personality. The Chevelle's muscular exterior exudes power and finesse. Indeed, if there was an Olympics for American automobiles, the 1968 Chevelle would be the odds-on favorite to win the Gold Medal in the Decathlon for the 1968 model year of new vehicles. It's exterior athletic poise is matched by its comfortable interior.
The Super Sport version added another dimension to that personality, combining handsome styling with the performance credentials that made the SS 396 a fixture of America's muscle car wars. In stock tune, the SS 396 engine made 375-horsepower, which was formidable for 1968.
More than half a century later, the 1968 Chevelle remains a favorite among restorers, collectors, and enthusiasts who appreciate the combination of classic styling and big-block performance.
Eric's green example takes that formula to another level.
Rather than simply recreating the performance available from Chevrolet dealerships in 1968, this Chevelle embraces the possibilities of modern engine building. The result is a vintage Chevy with horsepower that would have been unimaginable in a showroom-stock Chevelle during the original muscle car era.
Keeping the Muscle Car Tradition Alive
There's a reason the Chevrolet Chevelle continues to command so much attention among American muscle car enthusiasts. These cars have personality, timeless styling, and an unmistakable connection to an era when horsepower ruled the streets.
Eric Domanic's 1968 Chevelle SS carries that tradition forward with a spectacular 632-cubic-inch big-block V8 mill that makes a reported 840 horsepower.
It's proof that while the original muscle car era may be behind us, the enthusiasm for building faster, stronger, and more exciting classic Chevrolets is alive and well.
And with 840 horses waiting under the hood, we'd wager Eric's Chevelle has no trouble getting noticed!
Classic Industries & Parts Unlimited Interiors Leading Supplier of American Muscle Car Exterior and Interior Components
Classic Industries offers restoration, replacement, and performance parts for 1964–1977 Chevrolet Chevelle and other classic GM muscle cars. Whether you're restoring a factory-original SS or building a high-horsepower street machine, explore the selection at ClassicIndustries.com.
Parts Unlimited Interiors provides a plethora of components and accessories for the vaunted Chevrolet Chevelle. Whether you rock a Chevy, roll strong in a Ford, or race a Mopar, you can seek interior items on the website.
