There were 2 versions of the Chevy/GM 364 manufactured between 2000 and 2007.
The LQ4 was used in a variety of Chevrolet & GMC medium and heavy-duty trucks. The LQ9 was more of a performance engine, and it was manufactured for inclusion in luxury SVUs, like the Cadillac Escalade.
The Chevrolet/GM 6.0 364 was designed to bridge the gap between GM’s newer small block and big blocks in Chevrolet/GM’s line of pickups and SUVs.