I have a 1999 6.0l and 4l80e with all acc. And harness taking fron wrecked truck had 150,000 miles bought to put in my truck but goin different route i also will be have a 4.8l coming soon asking 2500 for complete setup on 6.0l

 

I'm guessing it has the iron heads on it and longer crank?

 

Wait...they have longer cranks? Does that affect interchangeability say with newer stock heads?

 

Yes on iron heads im not sure on crank if u tell me a way to check ill let u know