The most powerful GMC Sierra 1500 from the factory today packs a ... Specialty Vehicle Engineering has built the 2025 Sport ...

While the LSA is the more powerful engine — producing up to 580 horsepower with the help of a 1.9 liter Eaton supercharger — the LS3 is a notoriously reliable power plant that is easier and ...

Although the Cadillac brand offers a supercharged V8 in the Silverado 1500-based Escalade, its GMC-branded sibling does not. Even so, the folks at Hennessey Performance Engineering are much ...