The inline-six engine offers some significant advantages against V-block engines, but these same engineering differences also ...

Multiple FAA Airworthiness Directives (ADs) are targeting general aviation engine cylinders, including a recent proposal for over 60,000 ECI cylinders, drawing strong opposition from industry groups ...

V6 engines are found in various cars across multiple different categories. This engine layout does have a few inherent flaws when compared to inline engines.