Chevrolet 454-cubic inch engines are available for sale from a number of automotive parts retailers including Summit Racing Equipment, JEGS High Performance and Speedway Motors, as of 2016. Sources for rebuilt and remanufactured Chevrolet 454 engines include PhoenixEngine.com and Remanufactured.com.
Summit Racing Equipment is a retail parts store that specializes in performance automotive parts. The store's website features Chevrolet 454 engines from a number of manufacturers including ATK High Performance Engines, Chevrolet Performance and BluePrint Engines.
PhoenixEngine.com rebuilds and sells automotive engines for muscle cars, street rods, trucks and vans. The website features Chevrolet 454 two-bolt main V-8 crate engines with available 375 to 502 horsepower.