THE 2010 MUSTANG w/ 4.6L V-8 315HP BULLITT MOTOR

The 500-horsepower, supercharged 5.4-liter V-8 in the Ford Shelby GT500 pegged for a two-year or so life-that being 2007 and 2008, perhaps rolling into ‘09 depending on how well it sold, and what Shelby’s own product plans were. Demand has proven strong, and we can confirm there’ll be a Ford built, developed, and produced Shelby GT500 version of the 2010 Mustang.

Don’t expect any changes in today’s, base 4.0-liter V-6 offering, as its prime purpose is motivating low-end and rental-fleet Mustangs. But the Mustang GT model’s V-8-currently a 4.6 liter, SOHC, three-valver-will be replaced by a new 5.0-liter engine that’s essentially an evolution of the old architecture. In fact, the new 5.0 may even appear in a limited edition run-out series of current model Mustang GTs – is it finally time for the reborn Boss 302?

One Ford engineer confirmed that the work done to create the Bullitt-edition Mustang’s uprated 4.6 “has a future.” That engine, remains internally stock, but breathes better due to a Ford Racing open element, cold air intake system, revised mufflers, a new crank damper (which ups the redline by 250 revs), and revised fuel mapping. This engine management programming allows the use of regular fuel, but switches to a more aggressive timing curve when it detects premium in the tank. The result is 315 horsepower, up from the current GT’s 300. The Bullitt’s V-8 is freer and quicker revving than before, and sounds great due to the new intake. There’s no reason to think the next gen GT’s powerplant won’t take its cue from this technology, and thus get the same tricks. Something like 325 to 350 horses out of the new 5.0-liter V-8 sounds feasible.