General Motors debuted the Gen 5 L86 6.2-liter EcoTec3 V8, one of the most reliable GM engines ever, in 2014 for use in various large SUV and full-size pickup truck applications. While similar to ...

The L86 and the L87, both from GM, both have earned accolades for reliability and appeal, but there are a few key differences between them. Here's what we know.