Massively built supercharged ’56 GMC RestoMod features a 427 tall block, Mooneyham blower, air ride, and hydraulic lift bed.
One of the most extreme classic truck builds to hit the custom scene is now available for sale: a 1956 GMC 100 RestoMod, packing a supercharged 427-cubic-inch big block, an array of polished custom components, and a hydraulic lift bed that turns heads wherever it goes.
Completed in 2015 after a two-year professional build, and further enhanced over the past three years, this one-of-a-kind creation is a Southern California showstopper with a massive performance pedigree and show-grade fabrication from top to bottom.
At the heart of the beast is a 427 tall block V8, topped with a Mooneyham 671 supercharger and fed by dual 750 CFM Demon carburetors. The build features TRW pistons, Chevy L88 “Pink” connecting rods, Grumpy Jenkins World Products heads, and a double roller timing chain backed by a Comp cam for streetable performance. A 700R4 overdrive automatic transmission with a polished case and pan handles the power, sending torque to a narrowed 9-inch Ford rear end with 3.70 posi-traction and a full custom 4-link suspension setup.
Handling and stopping power come from air bag suspension with adjustable ride height, Wilwood 4-piston disc brakes, and slotted and drilled rotors. The chassis is fully boxed and powder-coated, with custom cross supports, stainless brake lines, and chrome-plated front A-arms.
The exterior, finished in Tuxedo Black single-stage paint, retains incredible shine after a decade, with only minor imperfections. Custom touches include a 1957 hood for added rigidity and visual flair, triple-plated chrome bumpers, a hydraulic lift box bed with oak wood floor and stainless strips, and custom LED rear lighting.
Inside, it’s equally bespoke: black leather reclining bucket seats, matching door panels and headliner, custom AutoMeter gauge cluster, power windows, and a Billet Specialties leather-wrapped steering wheel complete the cabin. A full array of toggle switches controls everything from the electric fans and fuel pump to air ride and bed lift functions. The three-pedal look is purely visual—this beast runs a tall shifter over an automatic.
Rolling on 15-inch Billet Specialties wheels up front and 18-inch Centerline wheels in the rear, with Hoosier tires tucked under custom tubbed fenderwells, this truck merges brute force with streetable drivability in a way few hot rods do.
With fewer than 5,000 miles since the build and recent drivetrain refinements, this ‘56 GMC is a blown big-block street machine that’s both brutal and usable—a rare balance in the world of pro-level customs.
