5.3L V8 Vortec 5300 The Vortec 5300 is a small-block V8 GM engine that was produced from 1999 until 2013. While the 5.3L Vortec is based off of the LS engine platform, it itself is not technically an LS engine. The engine went through two different variations during its lifespan, Gen III and Gen IV. Across both generations the Vortec 5.3 had 10 different engine variations used … [Read more...] about Chevy Vortec 5300 Common Engine Problems – 5.3L Vortec V8