At a glance, this 1966 Plymouth Valiant looks like any other three-box Mopar sedan you'd pass in a parking lot: driver-quality gray paint, a blacked-out hood scoop, and a set of era-correct wheels. Pop the hood, though, and the story changes fast. A rebuilt 360ci V8 sits where a slant-six used to live, feeding through a Holley carburetor and a TCI three-speed automatic - the kind of subtle, well-executed restomod build that rewards a closer look.1966 Plymouth Valiant restomod, gray exterior, front three-quarter viewPhotos courtesy of North Shore Classics via the eBay listing.According to the eBay listing, the engine has just 9,601 miles since its rebuild, and the seller backs it up with a list of supporting work: fender-well headers, an aluminum radiator with an electric fan, power steering, manual front disc brakes, an open rear end, and a full set of aftermarket gauges to keep tabs on the new drivetrain. The body wears a fresh coat of gray paint, and the cabin has been redone in black diamond-stitched upholstery, giving the four-door sedan an interior that looks far newer than its 60-year-old shell.1966 Plymouth Valiant restomod additional exterior viewFour-door Valiants rarely get this kind of treatment; most builders gravitate toward two-door Signets, Barracudas, or the Dodge Dart, like the recently rescued 1970 Dodge Dart Super Swinger or the reunited 1968 Dodge Dart GTS convertible we've written about before. That relative rarity is part of what makes this build interesting: it takes a car nobody was clamoring to restomod and simply makes it a better driver. Readers weighing their own project's direction may want to read our breakdown of barn find vs. restomod vs. survivor builds before picking a path like this one.AdvertisementAdvertisementThe car is listed by North Shore Classics, a Mundelein, Illinois dealership with a long track record of sourcing and reselling solid classics - they've also handled builds like the burned 1970 Plymouth Superbird we covered recently. North Shore Classics is asking $17,350 or best offer, with a $250 deposit required to secure the car, and financing and shipping assistance is available. You can view the full listing, photos, and walkaround video directly on eBay.Whether or not this exact Valiant ends up in your driveway, it's a good reminder that a rebuilt small-block and a handful of supporting upgrades can turn an overlooked family sedan into a genuinely fun driver, no fender flares or six-figure build sheet required.