Saleen, Roush and Boss MustangsDiscussions on Saleen, Roush, and late model Shinoda Boss Models within. SVT models, check the 4.6L section.
Welcome to Mustang Forums!
Welcome to Mustang Forums.
You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, at no cost, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!
In 50 words or less, what is the difference between the Roush 427R, 428R, and 429R? I'm doing my research on my next new car purchase (it's between the Roush, GT500 or Challenger SRT), and can't seem to find a whole lot of difference on paper between the Roush's.
This ad is not displayed to registered or logged-in members. Register your free account today and become a member on Mustang Forums!
427R is an unlimited build with stage3 suspension for '07 thru '09.
428R is a limited build of 200 cars for each model years '07 & '08 with stage3 susp. and polished supercharger.
429R is a limited build of 100 cars for '09 only with polished S/C and stage3 susp.
Right on all counts except the suspension. All 427, 428, & 429s have a Modified Stage 2 Suspension. The modification comes in the front as changes were made in the springs and struts to accomodate the extra weight of the SC to keep the handling the way Roush wanted. Stage 3 suspension parts are all red. Stage 2 are all blue.
This forum is owned and operated by Internet Brands, Inc., a Delaware
corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford
Motor Company or its related companies in any way. Ford® is a registered trademark of the Ford Motor