Help&Advise Wtd- rear fuel tank conversion - The 1947 - Present Chevrolet & GMC Truck Message Board Network

cypress TX 72 · 09-29-2005, 02:32 PM

I have converted to a rear tank, and need to see some pics or get some advise on the filler part.
I have fabricated a pipe to come through the bed floor behind the DS wheel tub and under the rail flange. But I am worried about the connections and the flow when putting fuel in.
The tank has a inlet of 1 1/4 OD and of course the neck that I cut off the behind the seat tank is like 3". so that creates some issues.
Also the new tank has one inlet and three vents ???????
And can anyone tell me if the new eldebrock mechanical fuel pump will pull the fuel all the way from the back of the truck.
Thanks for you help

Putter · 09-29-2005, 04:05 PM

You should have no problems with the mechanical fuel pump pulling fuel.....that was how a suburban would have been set up, right?
On the filler neck (3"), why not hit a junk yard and get a smaller one from an S-10 or Astro van?

Mudder · 09-30-2005, 05:47 AM

Or get one from a boat. I do have a body lift on this 4x4 so I have more room for the hose than most.

cypress TX 72 · 09-30-2005, 03:17 PM

Hey Thanks for the advise guys.
Mudder, what is that second smaller line for? is that the vent?

Mudder · 09-30-2005, 03:21 PM

Thats a vent. It will be needed for filling the tank. I have a second vent going to a charcoal canister in the front of the truck.

09-29-2005, 02:32 PM	#1
cypress TX 72 Saving one 72 at a time!! Join Date: Sep 2005 Location: Cypress, TX Posts: 261	Help&Advise Wtd- rear fuel tank conversion I have converted to a rear tank, and need to see some pics or get some advise on the filler part. I have fabricated a pipe to come through the bed floor behind the DS wheel tub and under the rail flange. But I am worried about the connections and the flow when putting fuel in. The tank has a inlet of 1 1/4 OD and of course the neck that I cut off the behind the seat tank is like 3". so that creates some issues. Also the new tank has one inlet and three vents ??????? And can anyone tell me if the new eldebrock mechanical fuel pump will pull the fuel all the way from the back of the truck. Thanks for you help

09-29-2005, 04:05 PM	#2
Putter More Cowbell.... Join Date: Mar 2004 Location: Puckett, MS Posts: 3,569	You should have no problems with the mechanical fuel pump pulling fuel.....that was how a suburban would have been set up, right? On the filler neck (3"), why not hit a junk yard and get a smaller one from an S-10 or Astro van? __________________ *There once was a member from Puckett.....Who ( fill in the blank blank blank* ) bucket**

09-30-2005, 05:47 AM	#3
Mudder Registered User Join Date: Feb 2001 Location: East Central, MO Posts: 11,336	Or get one from a boat. I do have a body lift on this 4x4 so I have more room for the hose than most. Attached Images Last edited by Mudder; 09-30-2005 at 05:48 AM.

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09-30-2005, 03:17 PM	#4
cypress TX 72 Saving one 72 at a time!! Join Date: Sep 2005 Location: Cypress, TX Posts: 261	Hey Thanks for the advise guys. Mudder, what is that second smaller line for? is that the vent?

09-30-2005, 03:21 PM	#5
Mudder Registered User Join Date: Feb 2001 Location: East Central, MO Posts: 11,336	Thats a vent. It will be needed for filling the tank. I have a second vent going to a charcoal canister in the front of the truck.



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