A jet-black, supercharged 1955 Chevrolet Bel Air built in period-correct gasser style is drawing serious bidder attention on Hagerty Marketplace, where the no-reserve sale has already topped $26,000 with several days left on the clock. The two-door post sedan is part of the George G. Trebbi Collection, a group of custom, loud, and fast machines being sold in tribute to the late Cincinnati collector who built his life around classic Chevrolets.
The gasser look traces back to the NHRA’s Gas classes of the mid-1950s, when drag racers needed a way to get sticky, wide, low-traction tires to hook off the line. Racers found the answer in a straight front axle, a raised nose, a lowered rear end, and a stripped-down body, all working together to shift weight rearward under hard acceleration. The formula caught on so widely that “gasser” became shorthand for the whole aggressive, wheels-up look, regardless of what NHRA class a particular car actually raced in.
This particular Bel Air leans hard into that formula. It rides on a dropped straight front axle with a tilt fiberglass front clip, wears a flat-black hood cut for a supercharger scoop, and rolls on a period-style combination of Mickey Thompson front rubber and Firestone slicks out back. Under that hood sits a 468-cubic-inch big-block Chevy topped with a Roots-style 6-71 supercharger and a pair of Holley double-pumper carburetors, feeding a Richmond Super T-10 four-speed manual and a 9-inch rear axle with 4.10 gears. Inside, a roll bar, Chevelle bucket seats with harnesses, a Hurst shifter, and a bank of underdash gauges complete the drag-strip theme, and a handwritten dyno note included with the car’s documentation claims 668 horsepower on pump gas, though there’s no timeslip to back up a quarter-mile number…