Over the years, the 427-cubic-inch crate engine has taken many forms. Originally, the 427 was offered as a big block engine by both Ford and Chevrolet. In the 1960s, Ford's 427 big block dominated ...

However, its cast-aluminum pistons are a weak point inside the engine that limit it to 430 horsepower and 475 pound-feet of torque. The Roush 427 SRX crate engine, for comparison, also uses a cast ...

Roush Performance has solved this problem with the introduction of the "Ford-in-a-Ford" powertrain package, which includes a powerful Roush crate ... Ford engines, including the 427, which is ...

Roush Performance offers three small-block Ford-based 427-cubic-inch V8 crate engines that produce over 500 horsepower. The 427 SR crate engine provides 510 horsepower, the 427 R has 550 ...