How much horsepower is 634 cc?

To convert cubic centimeters (cc) to horsepower (hp), you need to know the engine's displacement and its specific output or power density. The specific output is measured in horsepower per liter (hp/L).

For a 634 cc engine, the displacement is 0.634 liters. Let's assume a specific output of 100 hp/L, which is a typical value for a small gasoline engine.

Horsepower = Displacement (L) × Specific Output (hp/L)

Horsepower = 0.634 L × 100 hp/L

Horsepower ≈ 63.4 hp

Therefore, a 634 cc engine with a specific output of 100 hp/L would produce approximately 63.4 horsepower. However, it's important to note that the actual horsepower may vary depending on factors such as engine design, efficiency, and operating conditions.