Hennessey Performance Engineering has recently launched a supercharged upgrade package for the GMC Sierra 1500 with the 6.2-liter small block. Pictured at the Texas-based tuner's Pennzoil Proving ...
On December 12, the mad folks at Hennessey Performance Engineering rolled out the Goliath 650 supercharged upgrade for the GMC Sierra 1500 with the 6.2-liter small block. In combination with a Whipple ...
Right out of the box, the GMC Sierra 1500 is a very solid truck, but if you’ve got a speed itch, the stock pickup may prove lacking. Enter Hennessey Performance Engineering, which offers a wide ...
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