It has 255 horsepower bone stock
200 hp
The horsepower of a GMC Sierra is 355 hp.
The manual in my 2000 Blazer said 190Hp
No, its got a 5.7L V8, 350 vortec
well dip$hit gmc make vortec
I believe it is 18436572 1.8.4.3.6.5.7.2
You can put the Vortec in it if you have the wiring and ecm to run it. or you could use the Vortec heads and an aftermarket intake and really wake up your engine. The vortecs use a roller cam.
Diagrams for a 5.7L Vortec Engine for a 1999 GMC Yukon can be found in GMC forums online, or in an image search. They can also be found in the repair book found in auto shops.
75 ft lbs
18436572
195 hp
Between 1985 and 1993 it had 190 horsepower. 1994 had 210 then it went back down to 195 in the following years.