This Competition Yellow 1955 Chevrolet 210 keeps almost nothing it was born with. The original frame, suspension, and inline-six are gone, replaced by a full Art Morrison chassis and a Corvette-derived LS6 aluminum V8. Somehow it still reads unmistakably as a Tri-Five the instant you see it. Read on for what actually changes underneath a build like this, and why the Tri-Five became the default canvas for American restomodding.