A 383 stroker swap turns a Corvette’s stock 190-horsepower small-block into something that can push past 500 horsepower, all without changing the engine’s outward dimensions. This dark blue 1981 C3 – built during the brief window when Corvettes came from two factories at once – has clearly been transformed from its factory-carbureted origins. Upgraded suspension, transmission, and cooling round out a build meant to handle all that added power.