In their later years, Vortec engines have fallen victim to some downsides, like Active Fuel Management, an aggressive thirst for oil, and engine knocking. But back when they were brand-new, these ...

Excluding aftermarket crate engines, the 496ci (8.1-liter) Vortec 8100 is widely regarded as Chevrolet's largest production big-block V8. Introduced in 2001 as the successor to the 454ci Vortec 7400, ...