<P> GM introduced a reworked version of the Silverado and Sierra in 2003, with a new front end and a slightly updated rear end . In 2006 the Silverado received another facelift, similar to the HD version introduced in 2005 HD models . In addition to that, Chevrolet has deleted the "Chevrolet" badge off the tailgate that was used from 1998 - 2005 . Its SUV counterparts retained the use of the pre-facelift sheetmetal . </P> <P> The Insurance Institute for Highway Safety (IIHS) gave the Silverado an overall "marginal" score on the frontal offset crash test for poor structural integrity and poor dummy control, although no injuries were recorded on the dummy's body regions . </P> <P> GMC created an upscale version of its Sierra 1500 in 2000 called the Sierra C3 . It used all - wheel drive with a 3.73 final drive gear ratio and included the 6.0 L Vortec 6000 LQ4 V8 rated at 325 hp (242 kW) at 5000 rpm and 370 lb ft (502 N m) of torque at 4000 rpm coupled to a 4L60E - HD four speed automatic transmission along with other upscale equipment . For 2002, the name was changed to Sierra Denali, but the specifications remained essentially the same except for the addition of Quadrasteer and GM changed from the 4L60E - HD to the 4L65E in conjunction with a 4.10 final drive gear ratio . </P> <P> The Denali is rated for towing 9,100 pounds (4,100 kg) and hauling 1,595 pounds (723 kg) in the cargo box . </P>

What engine is in a 1999 chevy silverado