This special-order 1972 Chevrolet Chevelle Heavy Chevy was marketed as a lighter version of the SS and advertised much lower stated horsepower. Heavy Chevys were factory-coded as a base Chevelle and theoretically avoided the SS title, which triggered double-digit insurance premium increases. The factory RPO code YF3 made this a Heavy Chevy and was a sub-model based on the Chevelle series. It features a blacked-out grille and headlamp bezels, 14x6 Rally wheels, a domed hood and hood pins, and Heavy Chevy body stripes, hood/trunk lid and fender badges. It's also equipped with F41 heavy-duty suspension and a base interior, rubber floor matting and bench seating to save weight. This Heavy Chevy is one of only 286 built with the optional big-block LS3 402ci engine and the special heavy-duty MC1 Muncie 3-speed manual transmission available only with this engine. Additionally, it was ordered with front power disc brakes, sport steering wheel and posi-traction rear axle. This is an all-matching-numbers car with a copy of the original sales agreement, Protect-O-Plate and warranty book.