Why Boaters Still Love the Mercruiser 496 Mag

The 496 Mag arrived on the scene back in the early 2000s, replacing the old 7.4L (454) and 8.2L (502) engines. It wasn't just a simple bored-out version of an old design, though. This was a ground-up build based on the General Motors 8.1L Vortec truck engine, and Mercruiser did a fantastic job of "marinizing" it for the harsh conditions of the lake or the ocean. ...

February 18, 2026 · 6 min · Dugald Lesli