ROUSH Crate Engines are high-performance engines that are based on and operate like the engines designed and produced in the 1960s and later. However, unlike engines of that time, ROUSH Crate Engines (like other crate engines currently manufactured in the marketplace) produce significantly more power and torque.

Roush 427 R crate engines are turnkey-ready, high performance plants designed to produce significantly more power and torque than their original production predecessors. These engines have been dyno-tested to 550 hp, 535 lbs.-ft. torque, …

Sep 30, 2009 · Building on what many of us believe to be the best Mustang ever, this Roush is the choice for those who want a well-rounded Stang that combines extra power with decent handling.

The 2007 Roush 427R is a custom Mustang that accelerates with the torquey power band of a Roots-style blown three-valve engine and rides almost as well as a stock Ford Mustang GT - 5.0 Mustang...

This 2008 Ford Mustang Roush 427R bears Roush Serial No. 80-341. Upgraded power is delivered by the Roush supercharged 4.6L V-8 engine, delivering 435 HP and 400 lb-ft of torque to the road via a 5-speed manual transmission upgraded with the Roush/Hurst shifter package.

427IR – This engine gets 50 more horsepower and an additional 35 lb.-ft. of torque than the 402IR, but has the same combination of a “Weber Style” 8-Stack Fuel Injection Induction System utilizing Roush engineered calibration.

Each IR Series engine is hot tested, then dyno tested to verify power. All IR Series engines are shipped with documentation and carry a two-year limited warranty with Roush.

ROUSH Crate Engines are high-performance engines that are based on and operate like the engines designed and produced in the 1960s and later. However, unlike engines of that time, ROUSH Crate Engines (like other crate engines currently manufactured in the marketplace) produce significantly more power and torque.

The 2010 Roush 427R Ford Mustang will be the first in the lineup of new 2010 Roush Mustangs to have a ROUSHcharger installed that will boost horsepower to 435 and 400 lb.-ft. of torque. This is the first time that ROUSH has been able to offer a supercharged vehicle at the launch of …

Fueled by Jack Roush since 1976, Roush has been building some of the best Ford-based performance engines in the world. Roush is still proud to offer custom engine building, as well as complete crate engines and crate engine components!