How much horsepower does a 2003 Chevrolet silverado with a vortec engine have?

[Devin]

It's a 4.8 liter it's either a vortec 364
Or a 327 can you tell me the horsepower for both
It's either a 364 or a 327 it's a 4.8 liter and it's a v8

 

[Cable T]

In 2004 my 4.8 was advertised at 200HP. The 5.3 advertised at 210HP. (((The 4.8 is 292 cubic inches...not 327)))

 

[LS1]

the 4.8l motors is 293ci and is rated at 300hp and 315ft-lbs torque

the 5.3l is often stated being a 327ci motor but it's not. It is 325ci.. the 6.0l is 366ci and the 6.2l is 376ci

~in response to cable t.. none of the genIII/IV vortec motors have been offered with less than 295hp.. the 5.0l motors from several years ago were but the 4.8l makes significantly more power.. i hate to refer people to wikipedia but it's a decent source of mass information just wiki "vortec"

also your calculation for displacement while being a good rule of thumb isn't the true standard

the math formular for a cylinder multiplied by the number of cylinders so
? r^2 * L * #cylinders

 

[Tepee]

Your question lacks some vital information, like what size vortec engine you're asking about. There was one V-6 and three V-8 versions of vortec engines in 2003.