How Many Crankshafts Are in a V6 Engine?

A V6 engine contains one crankshaft, regardless of its cylinder arrangement. Here’s why:

Basic Design of a V6

A V6 engine has six cylinders split into two banks (rows) arranged in a V-shape.

All pistons connect to a single crankshaft positioned at the base of the engine block.

The crankshaft converts the linear motion of all six pistons into rotational power for the transmission.

Why Only One Crankshaft?

Simplicity: A single crankshaft reduces complexity, weight, and manufacturing costs.

Efficiency: Coordinating piston timing across two cylinder banks is easier with one shared crankshaft.

Reliability: Fewer moving parts mean lower risk of mechanical failure.

Exceptions and Myths

Dual Crankshafts: Some experimental engines or custom builds (e.g., twin-engine setups) use two crankshafts, but these are not standard V6 designs.

Confusion with Camshafts: V6 engines may have multiple camshafts (for valve control), but they still use one crankshaft.

Real-World Examples

Most production V6 engines—like those in the Toyota Camry, Ford F-150, or Nissan 370Z—use a single forged or cast crankshaft optimized for balance and durability.

Final Answer: All production V6 engines have 1 crankshaft. Dual-crankshaft designs exist only in niche prototypes or modified racing engines.