I drive a 2000 Silverado, bought it in 2007 with 180,000km on it. I work at a dealer so I got a pretty good deal on it. Originally it had a 4.3L V6 with the 5 speed manual transmission.
2004 LS6 5.7L V8 (I rebuilt it after it dropped a valve in a CTS-V)
Original 5 speed manual transmission
Lunati camshaft. 224/228 .575/.575 on a 112LSA
Lunati high lift valve springs
6.0L 317 heads
Edelbrock shorty headers
Electric cooling fans
Magnaflow cat-back exhaust
Nelson Performance custom 91 octane tune
Either build the engine up more or throw on the turbo kit I have for it. I'd do a rear mount intercooled setup.
T-56 6 speed manual transmission
4:56 or 4:88 gears
Most recent pic of it, crappy cell phone pic
2000 Silverado RCSB 5.7L LS6 - 5 speed (Ex 4.3L V6)
T4 Turbo/Intercooler, Lunati cam - 220/224 .575/.575 112lsa, 317 heads, Edelbrock shorty headers, Magnaflow cat-back, CAI, Nelson Performance tune.