I am a recent owner of a Beautiful Truck! 2001 Chevy Silverado LS 13 Xtreme Off-Road. This model is a little difficult to find so I have decided to reach out to Forums for more info. This truck comes with a 5.3l "actual" 327ci. I look forward to meeting some good people and maybe gaining a little insight into my truck. 88 all and talk to you later!