Dual Fuel Tank Conversion - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Jay290 · 01-24-2011, 05:10 AM

Hello I've got an 83 SWB it came with a single tank I'm curious if it would be worth the trouble to try and install a second tank in this thing. Or would it just be easier to just install a 22 gal fuel cell in the bed?

gchemist · 01-24-2011, 05:43 AM

Welcome to the site. Why not add 45 gallons!! Yea!! You can add a suburban or Blazer tank where the spare tire mounts!
Blazer tank install: http://www.captkaoscustoms.com/blazertank.html
Fuel cell: http://www.73-87.com/7387garage/chas...ellinstall.htm

I have dual tanks on my 83. Cruise range is almost ~275 miles per tank! 500+ miles with both full tanks if I keep my foot out of it.

Get a catalogue from www.lmctruck.com. You can find all the stock parts you need. You will need to add a second fuel door or swap beds. I replace the origina bed on my truck. I found a single tank SWB bed. I had the passengerside fuel door added to the replacement bed.

Jay290 · 01-24-2011, 05:55 AM

Well when I did the body work on the truck I had to replace the pasenger side bed side I went ahead and got the one that had the fuel door in it. What all would I need to add. I know the selector valve, tank, fuel line and the switch inside the cab. Is there any pictures of the factory setup or some kind of diagram?

BLE 'BURBAN · 01-24-2011, 10:35 PM

As far as the wiring goes if it were me, I'd locate one in a wrecking yard that had what I need for the wiring harness, carefully disconnect and remove it all without cutting anything anywheres then reinstall it all into my truck.

rayfinseats · 01-25-2011, 12:01 AM

I own a 83 dual tank 4x4. I wont be looking at til spring though.

orbot · 01-25-2011, 12:38 AM

I would do the blazer/burban tank..stockish look and cheapper id say, i already have the twin tank set up and they are nice but they are small as well

Jay290 · 01-25-2011, 04:36 AM

Yah I'm wanting a few more miles out of it in between fuel stops, the one 16 gallon tank does not go very far in these things...kind of guess it would if I would keep my foot out of it. I will go and look through some of the salvage yards and see what I can find. When the 700r4 goes in next week it should help out a little.

01-24-2011, 05:10 AM	#1
Jay290 Registered User Join Date: Jan 2011 Location: Houston, Texas Posts: 23	Dual Fuel Tank Conversion Hello I've got an 83 SWB it came with a single tank I'm curious if it would be worth the trouble to try and install a second tank in this thing. Or would it just be easier to just install a 22 gal fuel cell in the bed?

01-24-2011, 05:43 AM	#2
gchemist BAD BOW-Silverado XST Join Date: May 2000 Location: Senior Member from Austin, TX Posts: 6,431	Re: Dual Fuel Tank Conversion Welcome to the site. Why not add 45 gallons!! Yea!! You can add a suburban or Blazer tank where the spare tire mounts! Blazer tank install: http://www.captkaoscustoms.com/blazertank.html Fuel cell: http://www.73-87.com/7387garage/chas...ellinstall.htm I have dual tanks on my 83. Cruise range is almost ~275 miles per tank! 500+ miles with both full tanks if I keep my foot out of it. Get a catalogue from www.lmctruck.com. You can find all the stock parts you need. You will need to add a second fuel door or swap beds. I replace the origina bed on my truck. I found a single tank SWB bed. I had the passengerside fuel door added to the replacement bed. __________________ Gerardo a.k.a. Mad Chemist Silverado XST videos Last edited by gchemist; 01-24-2011 at 05:45 AM.

01-24-2011, 05:55 AM	#3
Jay290 Registered User Join Date: Jan 2011 Location: Houston, Texas Posts: 23	Re: Dual Fuel Tank Conversion Well when I did the body work on the truck I had to replace the pasenger side bed side I went ahead and got the one that had the fuel door in it. What all would I need to add. I know the selector valve, tank, fuel line and the switch inside the cab. Is there any pictures of the factory setup or some kind of diagram?

01-24-2011, 10:35 PM	#4
BLE 'BURBAN In the Forgotten far North. Join Date: Jul 2007 Location: Anchorage, Alaska Posts: 2,627	Re: Dual Fuel Tank Conversion As far as the wiring goes if it were me, I'd locate one in a wrecking yard that had what I need for the wiring harness, carefully disconnect and remove it all without cutting anything anywheres then reinstall it all into my truck. __________________ 1987 R3500 CREW CAB DUALLY (BIG RED)Acquired 06/12/2015 1990 chevy suburban V2500 5.7L My cluster Mods-Nov 2007 overhead console Stereo install Round 2 Aug 2009 Heated/turn signal mirror upgrade

01-25-2011, 12:01 AM	#5
rayfinseats Registered User Join Date: Dec 2010 Location: sioux city, iowa Posts: 619	Re: Dual Fuel Tank Conversion I own a 83 dual tank 4x4. I wont be looking at til spring though.

01-25-2011, 12:38 AM	#6
orbot Registered User Join Date: Jan 2008 Location: Chula Vista, Ca Posts: 518	Re: Dual Fuel Tank Conversion I would do the blazer/burban tank..stockish look and cheapper id say, i already have the twin tank set up and they are nice but they are small as well

01-25-2011, 04:36 AM	#7
Jay290 Registered User Join Date: Jan 2011 Location: Houston, Texas Posts: 23	Re: Dual Fuel Tank Conversion Yah I'm wanting a few more miles out of it in between fuel stops, the one 16 gallon tank does not go very far in these things...kind of guess it would if I would keep my foot out of it. I will go and look through some of the salvage yards and see what I can find. When the 700r4 goes in next week it should help out a little.



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