From what I've read the 1NZ-FE engine came in the Echos, since 2000. Is this true? Is it 100% the same motor as the current XB motor? The reason I ask is, I'm wanting to get a long block for a project I'm working on. But I wanted to make sure it doesn't have to be specific xB/xA motor only! The Echo Sh*t is a whole lot cheaper!!! Thanks for any help.