This is a 100% original metal auto. No change in dimensions. Engine - 265 ci 3 5/16 X 4 Ford Flathead, Max1 cam,, Holley Carb, Offy heads Transmission - 200-4R O/D, Lokar shifter Rear Axle - New 9" hub to hub Currie 31 spline Fenders in Black Cherry Body and fender accents in Black Cherry Pearl Interior features leather and naugahyde upholstery with genuine Bird’s Eye Maple wood details. Too many special details to list.