changing coolant

I have a Hayne's manual and I know how to do everything I just need to know one thing: Where is the engine drain plug for coolant? I know where the one on the radiator is, but in the book it says to drain the engine one too. However, they fail to tell you anything except "front of the engine". Anyone?

On the front of engine, kinda behind the header, you'll see a big bolt, it'll be on the middle/left side of the engine I believe. Hard to miss, just take it out, and coolant will come pouring out.

I don't know if im blind or what but I still don't know what bolt this is.

If you have a stock header there will probably be heat sheilds covering it up.