Sold alongside its Valiant sibling, the Duster added a two-door fastback compact car to Plymouth's lineup through the end of the muscle car era. Despite its small size, the Duster could be optioned with 318, 340, and 360 cubic-inch small blocks nestled between its A-Body frame rails. With our Gen III Hemi swap systems, you can drop some late model Mopar muscle in there too.

From Ford Flathead to GM Gen V LT, and including everything in between like small-block and big-block Ford and Chevy, Gen III/IV LS, Coyote, Hemi, and more, we have the parts to coax more power out of the engine under the hood of your hot rod.