What is the different between V6 and In-line 6 ingine?

An inline engine has all the cylinders in a straight line. A V engine has 3 on one side and 3 on the other with the cylinder block actually in a V shape. The V shape was originally used to save space because a V engine is a little shorter than an inline engine. In the old days it was believed that an inline engine would produce more torque and a V engine would produce better horsepower and higher RPM's because of better balance. In today's world with computerized manufacturing we are back to more about space than anything.