97 gmc yukon 5.7 to 5.3 swap

[Brokenyukon]

yes you can get the fuel filter fitting to go with the hard line, but i would personally just use high pressure fuel hose for ease of placement and replacement

Yeah might just be easier and cheaper that way too. So on this 5.3 I noticed it has 2 fuel lines from the rail. And then it has a plastic hard line type deal that runs along them also. Might know what that is?

[94gmc6.0]

Yeah might just be easier and cheaper that way too. So on this 5.3 I noticed it has 2 fuel lines from the rail. And then it has a plastic hard line type deal that runs along them also. Might know what that is?

I don't have that line but i have a 2004 6.0 that doesn't have a fuel return line, so my only guess is its something for that or fuel pressure regulator. I used a 2005 van intake/fuel rail with a 1990 corvette fuel filter. the corvette filter regulates the pressure and has the return line built into it. So i just cut the old fuel lines on my truck in the frame and hooked the pump up then filter and return line.