I got a call today from a friend about having an LT4 engine in his possession. He was wanting to know if I wanted it for $600. I know nothing about this motor. Can someone give me some idea if its worth the money? I have not seen it yet and have no idea what shape its in. He said he was told it was running when it was pulled. I am thinking the heads and fuel injection may be worth the money. I could also possibly talk him down to around $400. Thoughts.