This story was originally published online December 14, 2017, and has been edited and reformatted by Tim Bernsau. Building a hot rod means working all the angles, and there are plenty of angles to ...

V-shaped engines like the V6 and V8 power lots of cars, but you probably never think about what, exactly, that V angle is. That's okay. Automotive engineers do.

Add Yahoo as a preferred source to see more of our stories on Google. In an internal combustion engine, air and fuel are injected into the cylinders, where ignitions occur in a controlled environment.