Question: what is a vortec max?
Answer: The 6.0L Vortec MAX is a high-output version of the standard 6.0L, or Vortec 6000. ... In 2005/6 it was re-named to the Vortec MAX. In short, the MAX was a premium version of the standard 6.0L vortec and featured increased power output and increased towing capacity.