Kurt Busch will run the older Dodge engine at Talladega

From a Dodge Motorsports Notes & Quotes – Kurt Busch [#2 Miller Lite Dodge] Open Interview – Talladega:

CAN YOU TALK ABOUT YOUR EXPERIENCE WITH WORKING WITH JASPER ENGINES?

"That's our engine shop and that's where we build the horsepower that we need for the open motors and the restrictor-plate motors. We've phased in our R6 for this race. The 12 of Stremme and 77 of Hornish Jr. cars for Penske Racing will be racing the new engine (R6). I'll still have the R5 package because of the durability questions. The power still shows the same. For us being in the Chase, you can't afford to have an engine failure. We needed to go with the given. With those guys running the new R6 engine, it helps us get ready for Daytona in 2010." Dodge Motorsports