1998-2005 Silverado / Sierra 1500 Performance Parts & Accessories

The legendary GMT800 platform holds a sacred place in modern truck history, officially introducing the world to the game-changing Gen III small-block LS V8 architecture. Renowned for its bulletproof reliability, exceptional structural frame rigidity, and simple mechanical layout, this era of the Silverado and Sierra is widely considered one of the absolute best platforms for high-horsepower street trucks, turbo conversions, and rugged daily driving.

The iconic Vortec engine family includes the legendary 5.3-liter V8 delivering 285 hp @ 5200 rpm (bumped to 295 hp in later years) and 325 lb-ft @ 4000 rpm, along with the high-output 6.0-liter Vortec V8 featured in the Silverado SS pushing 345 hp. The pure RWD or mechanical 4WD drivetrain depends on the incredibly robust 4L60E or heavy-duty 4L65E 4-speed automatic transmissions.

So, look around and check out the awesome quality performance parts available for your GMT800 truck, all available here at Hypermotive!