Kind of fuel pump for Obs ls1 swap?

[91ls1silverado]

Im getting ready to drop in the engine, what fuel pump do i use what mods will i have to do to make it work? and also i have an ls1 intake with fuel rails, wondering what do i need to make fit with same fuel lines...thanks!

[RPM Graphics]

96-98 pump will work. since the tanks are the same as the 91 it should be a fairly easy swap. or go to a pull a part & grab a whole tank & everything from a 96-98.
you going to have to make or have some lines made. i had to make 2 short lines to go from my factory truck lines to the vette filter, then a new line from the filter to the rail.

[shmiet]

I recommend an aeromotive 340 stealth. But it will have to be "retro" fitted. I figure if you every want to do upgrades, this fuel pump will be able to supply.

[shmiet]

I believe the stock fittings are M14(return) and an M16(feed) on the lines shown above.

[gagliano7]

Here is the pump i used http://www.highflowfuel.com/i-478352...1988-1995.html

[88stepside]

Fuel pump is same as Grand National pump. Search for Walbro F20000169. Very cost effective, get the kit that includes sock and wiring and you're done.

[baronsmith98]

Here is the pump i used http://www.highflowfuel.com/i-478352...1988-1995.html

Is that a return style pump like the factory one? Can you use your factory fuel lines with it?

[91ls1silverado]

96-98 pump will work. since the tanks are the same as the 91 it should be a fairly easy swap. or go to a pull a part & grab a whole tank & everything from a 96-98.
you going to have to make or have some lines made. i had to make 2 short lines to go from my factory truck lines to the vette filter, then a new line from the filter to the rail.

Thanks for the help, do you have another picture of the fuel system? Thanks

[91ls1silverado]

96-98 pump will work. since the tanks are the same as the 91 it should be a fairly easy swap. or go to a pull a part & grab a whole tank & everything from a 96-98.
you going to have to make or have some lines made. i had to make 2 short lines to go from my factory truck lines to the vette filter, then a new line from the filter to the rail.

Thanks, and I just bought those blue adapters, I'm kind of confused on what fuel lines to use. I'm new to this so its a lil confusing to me...dont know if i should use -6,-4,or -8...

[RPM Graphics]

think i used -6 on mine.