I'm doing a 2000 4.3 to 2001 5.3 swap and the intake manifold I currently have appears to only have one fuel line. Can anyone tell me if I have the correct intake to do the swap? Reason I ask is because I only see one fuel hard line, and coming the body of my truck there are two fuel lines. The send and return line. Someone mentioned that this fuel line setup is considered a "returnless" intake, and I would have to change out my entire fuel system to make this intake work. Can anyone tell me otherwise, or that I just need to get a new intake? Here is a pic:



thanks,
david

 

you'll need a return style (2 lines) fuel rail to work with your fuel system.

 

you have the return-less rail, that's the only thing that I see wrong. What did it come off of ?

 

Would I be able to purchase the return style fuel rail and just bolt it up to this intake? Or would I need a whole 'nother intake?

 

yes, the return style fuel rail will bolt right up to that intake ducky.