LS swap question

[weq92f]

Originally Posted by Derek.Matirne

... I tried the parts store, but they cant find crap without a part number or application...

This is so true. In your case, I'd just tell them 2001 Suburban w/5.3 liter V8! With that, you should find a part number at least and then go from there.

Those kids behind the counter at Auto parts stores don't seem to know anything other than how to look up year/make/model and read what they see on the screen. The old geezers that really do know something are becoming a thing of the past as have reams of parts catalogs and diagrams that used to line the parts counter. I was a parts counter guy back in 1989 while attending college. The job required some skill and knowledge of auto parts/repair, ability to run a lathe to turn rotors and a certain amount of intelligence to not make a fool of yourself when helping out the corporate customers ( the ones who know their $hit and get extended the full discount ).

-klb

[LS short box]

I could be wrong but I think the fuel pressure is regulated in the gas tank. The little device that sits on the fuel rail is some sort of buffer not a fuel pressure regulator. On the 2001 engines did they have one line running up to the fuel rail?

[67 chevelle]

Originally Posted by weq92f

This is so true. In your case, I'd just tell them 2001 Suburban w/5.3 liter V8! With that, you should find a part number at least and then go from there.
-klb

that would be an in tank pump , he is looking for external

I could be wrong but I think the fuel pressure is regulated in the gas tank. The little device that sits on the fuel rail is some sort of buffer not a fuel pressure regulator. On the 2001 engines did they have one line running up to the fuel rail?

If there is a return line from the fuel rail , the regulator is in it , the rail that is . Newer models without the return [returnless] can use the corvette filter/regulator almost all of us do , great info on ls1tech.com in the conversions and hybrids section

[ls1nova71]

A 2001 truck engine WILL have a return line and the regulator on the fuel rail. As others have said, use a Walbro255 and run the feed line to a fuel filter then the feed line on the fuel rail and the return from the rail back to the tank.