When did GM begin using the 5.3 motor?

General Motors began using the 5.3-liter V8 engine in 1999, initially introduced in the Chevrolet Silverado and GMC Sierra trucks. This engine is part of GM's LS family of engines and has been utilized in various models across the brand, including SUVs and performance vehicles. The 5.3-liter engine has undergone several updates and variations since its debut, enhancing performance and efficiency.