Have a vortec Engine in my 2000 1500 gmc Sierra, how do i find out what type of 5.3 it is?

Asked by Aug 26, 2014 at 11:48 AM

Question type: Maintenance & Repair

Replacing power steering cooler lines. Believe i have a vortec 5.3 but not sure if its a high
performance or regular engine

2 Answers

There is only one Vortec 5.3 in 2000 -- 2003 in the Sierra. 285HP http://www.pickuptrucks.com/html/sierra.html

There is in fact a 5.3 HO High Output but not in a Sierra. Like this (click for full screen)

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