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Hennessey Performance Engineering has created an HPE650 package for the Jeep Grand Cherokee SRT fitted with the 6.4-liter Hemi engine. When it leaves the showroom floor it has 470 horsepower and gets from 0-60 miles per hour in 4.8 seconds. When it leaves Hennessey's garage floor after the upgrade it has 650 horsepower - 530 hp at the wheels, according to Hennessey - and gets to 60 mph in 3.9 seconds on its way to running the quarter-mile in 12.6 seconds.

There's more than just a Roots-type supercharger bolt-on, with ported cylinder heads and high-flow headers among the many changes made to the engine. You can watch this pre-2014 facelift silver model prove its spec sheet on the drag strip in the video below.Continue reading Watch this 650-hp Hennessey Jeep Grand Cherokee go from 0-60 in 3.9 seconds

Watch this 650-hp Hennessey Jeep Grand Cherokee go from 0-60 in 3.9 seconds originally appeared on Autoblog on Tue, 14 May 2013 16:57:00 EST. Please see our terms for use of feeds.



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Silver Billet

Very Cool!