Best 8.1 Vortec Upgrades and Mods
First released in 2001, the 8.1L Vortec – or Vortec 8100 – was one of the top platforms for GM truck owners for several years. Mostly used inside the Silverado/Sierra and Suburban/Yukon, the Vortec 8100 was a top engine for heavy duty trucks. It makes a healthy 320–340 horsepower and 440–455 lb-ft of torque depending…