Starting in 1999, heavy duty pickup trucks and large SUVs from Chevrolet and GMC would get a new LS-based engine, the LQ4. The 6.0-liter LQ4, commonly known as the Vortec 6000, was a version of ...
LQ4 LS Truck Engine Dyno Westech 464 hp Dyno testing of our rebuilt LQ4 6.0L LS-variant truck engine at Westech Performance where it made 464 hp at 6,300 rpm Related Videos ...