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Author Topic: Fuel tank swap suburban to k20?  (Read 27252 times)

Offline spectreblazer

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Fuel tank swap suburban to k20?
« on: February 19, 2011, 05:18:53 pm »
can i delete the saddle tanks and swap a suburban tank in from an 80s suburban?
i have an 84 k20 that has a 1 ton dually axle mounted in the rear. the body is off and it is stripped to the frame currently.

what size could i go with? biggest?

i'm running new fuel lines so that isn't a big concern

i can fabricate some brackets too. just curious if anyone else has swapped the bigger suburban fuel tanks.

i've read captkaos build on a k5 tank.

my reason is i have a flat bed that will go on the truck and a side toolbox along with a stack on the other side.

thanks

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Offline bake74

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Re: Fuel tank swap suburban to k20?
« Reply #1 on: February 20, 2011, 10:13:00 am »
     Do a search for blazer gas tank swap on here, capt has done one with pics.
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#1: The easiest and most obvious solution to any problem is 99% of the time correct.
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  74 k10, 77k10    Tom

Offline nucknoel89

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Re: Fuel tank swap suburban to k20?
« Reply #2 on: February 20, 2011, 11:17:37 am »
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Offline bake74

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Re: Fuel tank swap suburban to k20?
« Reply #3 on: February 20, 2011, 03:02:38 pm »
     Thanks nucknoel89, I was late this morning and didn't have time to look it up.
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#1: The easiest and most obvious solution to any problem is 99% of the time correct.
#2: There is no such thing as impossible, it just takes longer.
  74 k10, 77k10    Tom

Offline slammed79

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Re: Fuel tank swap suburban to k20?
« Reply #4 on: February 20, 2011, 04:23:07 pm »
The 26 or the 31 gallon tanks will fit the trucks, the 40 gallon will not.
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74 C10 Long bed 350/SM465 Lowered on 20's

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Offline spectreblazer

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Re: Fuel tank swap suburban to k20?
« Reply #5 on: February 20, 2011, 04:41:58 pm »
Quote from: slammed79 on February 20, 2011, 04:23:07 pm
The 26 or the 31 gallon tanks will fit the trucks, the 40 gallon will not.

why will it not? i've up for a little modification. i would assume a 3/4 suburban frame with a 40 gal tank would be very similar to a 3/4 ton truck frame.
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Offline slammed79

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Re: Fuel tank swap suburban to k20?
« Reply #6 on: February 20, 2011, 06:22:54 pm »
Actually, after some looking, I think the 40 would fit in a lwb application. My bad, its the swb app that it won't work in.
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74 C10 Long bed 350/SM465 Lowered on 20's

Praise the lowered

Offline spectreblazer

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Re: Fuel tank swap suburban to k20?
« Reply #7 on: February 20, 2011, 07:42:16 pm »
Quote from: slammed79 on February 20, 2011, 06:22:54 pm
Actually, after some looking, I think the 40 would fit in a lwb application. My bad, its the swb app that it won't work in.

allright i have a long bed. i should have mentioned that to begin with. ;D
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Offline Captkaos

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Re: Fuel tank swap suburban to k20?
« Reply #8 on: February 22, 2011, 06:57:46 pm »
yes, 40 won't fit a SWB, it is tight on a LWB.
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Offline RivMan

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Re: Fuel tank swap suburban to k20?
« Reply #9 on: February 23, 2011, 10:50:59 pm »
Capt, any pics of how you setup the filler neck?

I'm looking into this too... 10mpg wouldn't be too bad if I could go more then 160 miles between fillups....

Thanks
-Rob
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Offline slammed79

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Re: Fuel tank swap suburban to k20?
« Reply #10 on: February 24, 2011, 02:46:56 pm »
http://67-72chevytrucks.com/vboard/showthread.php?t=435540&page=4

This is one way, prolly the slickest way I've seen to do it. I'm gonna try this when I cut my truck down.
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74 C10 Long bed 350/SM465 Lowered on 20's

Praise the lowered

Offline RivMan

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Re: Fuel tank swap suburban to k20?
« Reply #11 on: February 25, 2011, 12:50:42 pm »
Nice find, that looks good, but I don't think I can pull off something that slick. I'm thinking about a flip down license plate, with the filler behind it.

-Rob
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Offline Captkaos

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Re: Fuel tank swap suburban to k20?
« Reply #12 on: February 28, 2011, 05:05:56 pm »
with the Blazer tank you can't mount it behind the license plate, its too low (below the tank)

Mine is going to be behind the taillight...
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