Jack Roush, the driving force behind Roush Performance ... limit it to 430 horsepower and 475 pound-feet of torque. The Roush 427 SRX crate engine, for comparison, also uses a cast-iron engine ...

ROUSH is the first to market with a complete performance package for the new 2010 Mustang GT. The ROUSH 427R Mustang comes with more power, a new look and improved handling. Power is increased to ...