The horsepower of a 4.3L V6 engine varies significantly depending on the year of manufacture, the vehicle it's in, and its specific configuration (e.g., naturally aspirated, supercharged, modifications). There's no single answer.
You'll find horsepower ranging from roughly 160 hp to over 200 hp across different applications. To get a precise horsepower figure, you need to specify the year and make/model of the vehicle the engine is in.
