For Sale at Auction: 1990 GMC Sierra 1500 in Scottsdale, Arizona

This 1990 GMC 1500 custom pickup has almost nothing stock except for the basic body shape. It is powered by a 525hp LS3 engine with a Holley Hi-Rise intake and a custom 3-inch 304 stainless exhaust system that is partially belly-panned for a clean underbody. The engine bay is fully custom with shaved and smoothed panels, billet Eddie Motorsports hinges, a custom radiator support cover and a precision-machined radiator cap cover. Power is sent through a 4L75 automatic transmission equipped with a line lock. A brand-new Acme chassis was installed just prior to auction, adding modern drivability and rigidity to this completed, road-tested build. The chassis incorporates AccuAir suspension with integrated height and pressure sensors and dual Viair 488C compressors for precise stance control, while Wilwood 6-piston calipers front and rear handle braking. The exterior showcases extensive custom metalwork, including a tucked and shaved front bumper, custom grille, hand-fabricated lower signal lights, modified fender openings, raised door body lines and a shaved factory body line. Additional details include C6 latches, custom flush-fit rear glass and a smoothed firewall. The raised bed floor houses hand-formed custom inner tubs and a power-controlled tilt-up section that reveals the custom-built underbody. Custom flush-fit smoked taillights, a shaved tailgate handle and relocated fuel filler complete the design. Inside, the cabin features a one-off custom black and gray leather with Alcantara interior with a billet shifter and surround, custom center console, billet gauge cluster and billet switches. This show-quality pickup rides on 24x13-inch rear and 22x9-inch front U.S. Mags wheels wrapped in 335/30/24 and 255/35/22 tires. **MAY NOT BE EMISSIONS COMPLIANT IN ALL 50 STATES**