superdave84

Hello all

I bought several items before I bought my engine, one of them being the Corvette filter/regulator.

As it turns out, there's some kind of return off the rails on my 5.3 I got. It's the Flexfuel version, the L59.

Here is a picture of it:



So my question is, how do I hook up the fuel line and return? I know I need at least one of the quick connect AN adapters at the rail...do I need two? Does this setup mean I ditch the Corvette filter/regulator and just put in a fuel filter instead?

I have a few diagrams in a book I have about LS swaps, but they all have a single line into the rail, and no return.

I am leaving the 5.3 stock for now, but will be upgrading to a car intake/rails etc down the road. Could be a year or more though.

Thanks for your help

vannatta20

iTrader: (4)

I believe the truck engines regulate fuel at the rails. There is no need for the corvette filter. Just use a standard inline fuel filter and plumb the return to the tank. Thats what I did and it puts out the correct pressure.

Rick Speed

iTrader: (55)

The regulator is on the rail.. thst rusty cylinder with the vacuum line is it. so ditch the vette one and then run 2 lines to the rail. you will need the 3/8 connector and a 5/16 connector.

Andy1

The 3/8 line is the inlet. 5/16 is the return.

Andy1

superdave84

Thanks all. That's what I was thinking. I'll keep the Vette filter/regulator for when I swap intake and rails.

Thanks again

fast400

iTrader: (1)

That's not a L59 fuel rail though...

99VetteFRC

Remove the return and block it off with a 5/16" piece of a Round stock. I used a bolt shoulder. Hope the pics help.