Most inline-four engines use a flat-plane crank, meaning two pistons rise while two fall, giving perfect primary balance and even 180-degree firing intervals. Yamaha broke from this in 2009 with the ...

Crankcase ventilation or breather systems are necessary components for all modern vehicles. However, they're especially ...

There are two crank designs available when picking one for your next V-8 project: cross- and flat-plane. For the most part, cross-plane cranks dominate, especially in American V-8 engines, while ...

Compare that spinning mass of metal inside your engine block to the human spine and you get an idea of how important a strong one is. As the backbone of your engine, the crankshaft performs an ...

Engine discussions are not always limited to displacement, cylinder count, and horsepower. Sometimes discussions focus around the crankshaft debate, specifically cross-plane versus flat-plane.