Click above for high-res gallery of the 2008 Dodge Challenger SRT8

It's been less than a month since Dodge officially took the wraps off the Challenger SRT8, and horsepower fanatic John Hennessey already has a performance package available called the SRT700 that will have muscle car fans tingling with excitement. Since there's no replacement for displacement, Hennessey adds extra cubes to the 6.1-liter V8 with a stroker crankshaft, pushing it out to 426ci. For good measure, a 67mm turbocharger system is added as well, complete with an air-to-air intercooler. Forged aluminum pistons, forged steel connecting rods, high-flow cylinder heads, and a 3-inch exhaust system are also added, among other upgrades. The result is a tire-shredding horsepower increase of nearly 75% – 725 bhp @ 5200 rpm and 750 lb-ft @ 4000 rpm. Hennessey claims it's good enough for the Challenger SRT8 to hit 60 mph in 3.5 seconds (with the optional drag radial tire upgrade) and top out at 190 mph. Yep, sounds like pretty typical Hennessey stuff.



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