The headlight of the 2011 Shelby GT500
Patrick Rall's picture

New 5.8L V8 confirmed for 2013 Ford Mustang Shelby GT500

Since the 2012 Chevrolet Camaro ZL1 was introduced with 580 horsepower, rumors have been plentiful that the 2013 Ford Mustang Shelby GT500 would get a new motor to out-muscle the ZL1 with upwards of 600hp and while there are no specifications available, the new Ford-UAW contract has confirmed that the 2013 GT500 will indeed sport a new 5.8L V8 engine.

Spyshots have caught what looks to be the 2013 Ford Mustang Shelby GT500 with what looks to be a larger front mounted intercooler, leading some to believe that the supercharger would be axed in place of a twin turbo setup.

However, included in the fine print of the new Ford-UAW contract are the details of Ford’s pending investments in American assembly and production facilities - including the Romeo Engine Assembly Plant. Romeo will be tasked with building the new supercharged 5.8L V8 for the 2013 Ford Shelby GT500, with Ford having a cool $50 mil earmarked for the upgrades and retooling needed to build this new super-Mustang engine.

Unfortunately, the new Ford-UAW labor contract doesn’t offer us any idea as to how much power the 2013 Ford Mustang Shelby GT500 will be packing but it is a safe bet that Ford’s Special Vehicle Team is targeting a number north of the 580 ponies offered by the 2012 Camaro ZL1. The current supercharged 5.4L engine in the 2011 GT500 produces 550 horsepower, accounting for an efficiency figure around 101.85 horsepower per liter.

Should Ford and SVT be able to hit that number (and it is pretty safe to assume that they will) with the new 5.8L V8 in the 2013 GT500, it would make around 591 horsepower. That alone would be enough to best the ZL1 on paper but tacking on a few extra ponies to hit the magical 600 mark would make for a great marketing tool while also helping to ensure that the 2013 GT500 can take down the 2012 Camaro ZL1.

In addition to building the new supercharged 5.8L V8 for the 2013 Shelby GT500, the Romeo Engine Assembly facility will continue to build the 6.2L V8 used in F150 models like the high performance SVT Raptor and the 2012 Ford F150 Harley Davidson edition. We can expect to learn more about the 2013 GT500 and the new supercharged 5.8L V8 as we head into the American auto show season, beginning with the LA Auto Show in November and if nothing is unveiled there, we can almost surely expect to get our first good look at the new GT500 at the 2012 Detroit Auto Show.

Other Ford News:
The 2013 Ford Escape to offer two EcoBoost options
Next Gen Ford Fusion production could save the Ford Mustang facility
The 2013 Ford Mustang Boss 302 to get new colors, stripes and technology
American Muscle builds the first 2011 Ford Mustang V6 in the 11s
Ford trucks and SUVs lead the way in September 2011, Lincoln struggles
The 2012 Ford F150 EcoBoost offers 756 miles on a single tank of gas

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