LS1 Swap Fuel Rail Fuel Line Connection - The 1947 - Present Chevrolet & GMC Truck Message Board Network

67ChevNut · 08-24-2016, 10:56 AM

I am in the process of buying the proper fuel line to connect to my fuel rail, but I have some doubts. I have a 1998 Z28 LS1 and the fuel rail connections are a bit confusing. I can see it had two lines connected, but I see on other threads that only one is being used. There is a part connected to the fuel rail that I am not sure I need and I am wondering if I should remove the extra hoses after the fuel rail hard line connection. Those hoses come with a port to check for fuel pressure, do I need that? How exactly should I be connecting to the fuel rail? Just like to make sure that one of those fuel line kits will fit my application. I am posting some pictures to see if I can explain better my questions. Hope you guys can help me, want to make sure before I spend $350+ on a fuel kit I am planning to order. Appreciate the responses in advance.

ls1nova71 · 08-24-2016, 05:41 PM

The first two pics are of the evap purge solenoid, you shouldn't need that unless you're doing an emission friendly swap. I would remove it and cap the fitting on the intake. In the last couple of pics, you just need to hook the fuel line that actually goes to the fuel rail, it will be a returnless rail, so you'll need a Corvette fuel filter/regulator. The pic with the two lines together, the one with the green service port looking thing, is also for the evap system and generally not needed on a swap, unless you live in an area that requires that stuff to be hooked up.

67ChevNut · 08-25-2016, 01:29 PM

Thanks a bunch Ls1nova71, certainly will do what you told me.

**66ChevyMax** · 08-25-2016, 02:34 PM

Here is a pic for the fuel filter regulator, don't use the snap on AN fitting, they make ones with screw on ends now that work much better.

**A1971Blazer** · 08-31-2016, 06:48 PM

I assume those are the correct fitting part #s......as shown in your pic ^^^....?...or no...?

I just bought this tank and pump set up...... from a member here...... for my LS1 swap.....what fitting part #s
do I need for the sending unit as shown in the post (link below).....? I assume it's a factory configuration on the sender....?

http://67-72chevytrucks.com/vboard/s...62#post7698962

As far as the LS1 fuel rail........ in regards to the factory rail.......

On my '02 LS1.......it can be rotated 180º so that the fuel inlet is opposite from the factory location.
That's how I'm planning to run mine.

**66ChevyMax** · 08-31-2016, 11:28 PM

The ones on the left are the ones NOT to buy, use the below instead:

http://www.jegs.com/i/Russell/799/641303/10002/-1

**A1971Blazer** · 09-01-2016, 06:59 AM

Quote:

Originally Posted by 66ChevyMax

The ones on the left are the ones NOT to by, use the below instead:

http://www.jegs.com/i/Russell/799/641303/10002/-1

Thanks...!

08-24-2016, 10:56 AM	#1
67ChevNut Registered User Join Date: Mar 2009 Location: Eagle Pass, Posts: 195	LS1 Swap Fuel Rail Fuel Line Connection I am in the process of buying the proper fuel line to connect to my fuel rail, but I have some doubts. I have a 1998 Z28 LS1 and the fuel rail connections are a bit confusing. I can see it had two lines connected, but I see on other threads that only one is being used. There is a part connected to the fuel rail that I am not sure I need and I am wondering if I should remove the extra hoses after the fuel rail hard line connection. Those hoses come with a port to check for fuel pressure, do I need that? How exactly should I be connecting to the fuel rail? Just like to make sure that one of those fuel line kits will fit my application. I am posting some pictures to see if I can explain better my questions. Hope you guys can help me, want to make sure before I spend $350+ on a fuel kit I am planning to order. Appreciate the responses in advance. Attached Images

08-24-2016, 05:41 PM	#2
ls1nova71 Registered User Join Date: Dec 2009 Location: Independence Mo Posts: 4,119	Re: LS1 Swap Fuel Rail Fuel Line Connection The first two pics are of the evap purge solenoid, you shouldn't need that unless you're doing an emission friendly swap. I would remove it and cap the fitting on the intake. In the last couple of pics, you just need to hook the fuel line that actually goes to the fuel rail, it will be a returnless rail, so you'll need a Corvette fuel filter/regulator. The pic with the two lines together, the one with the green service port looking thing, is also for the evap system and generally not needed on a swap, unless you live in an area that requires that stuff to be hooked up. __________________ My '72 short bed build. http://www.ls1tech.com/forums/conver...6-0-4l80e.html 5.3 swap into my RUSTY '71 C10 http://ls1tech.com/forums/conversion...71-c-10-a.html

08-25-2016, 01:29 PM	#3
67ChevNut Registered User Join Date: Mar 2009 Location: Eagle Pass, Posts: 195	Re: LS1 Swap Fuel Rail Fuel Line Connection Thanks a bunch Ls1nova71, certainly will do what you told me.

08-25-2016, 02:34 PM	#4
66ChevyMax Senior Member Join Date: Oct 2011 Location: Wolfforth, Texas Posts: 976	Re: LS1 Swap Fuel Rail Fuel Line Connection Here is a pic for the fuel filter regulator, don't use the snap on AN fitting, they make ones with screw on ends now that work much better. __________________ Craig 1966 Chevrolet C10 - Supercharged LS3 1968 Chevrolet Camaro 1957 Chevrolet 2dr Hardtop "It makes sence if you don't think about it" Mesquite 1966 C10 - LS3 W/ Air Ride http://67-72chevytrucks.com/vboard/s...=1#post4989763

08-31-2016, 06:48 PM	#5
A1971Blazer Senior Member Join Date: Nov 2013 Location: East Tennessee Posts: 2,199	Re: LS1 Swap Fuel Rail Fuel Line Connection I assume those are the correct fitting part #s......as shown in your pic ^^^....?...or no...? I just bought this tank and pump set up...... from a member here...... for my LS1 swap.....what fitting part #s do I need for the sending unit as shown in the post (link below).....? I assume it's a factory configuration on the sender....? http://67-72chevytrucks.com/vboard/s...62#post7698962 As far as the LS1 fuel rail........ in regards to the factory rail....... On my '02 LS1.......it can be rotated 180º so that the fuel inlet is opposite from the factory location. That's how I'm planning to run mine. __________________ 1967 C10 Step side 1968 C10 Step side 1970 Chevrolet K/5 Blazer 1972 Chevrolet K/5 Blazer ............. Last edited by A1971Blazer; 08-31-2016 at 07:14 PM.

08-31-2016, 11:28 PM	#6
66ChevyMax Senior Member Join Date: Oct 2011 Location: Wolfforth, Texas Posts: 976	Re: LS1 Swap Fuel Rail Fuel Line Connection The ones on the left are the ones NOT to buy, use the below instead: http://www.jegs.com/i/Russell/799/641303/10002/-1 __________________ Craig 1966 Chevrolet C10 - Supercharged LS3 1968 Chevrolet Camaro 1957 Chevrolet 2dr Hardtop "It makes sence if you don't think about it" Mesquite 1966 C10 - LS3 W/ Air Ride http://67-72chevytrucks.com/vboard/s...=1#post4989763 Last edited by 66ChevyMax; 09-01-2016 at 09:15 AM.



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