Chevelle Gas Tank Swap - Page 2 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

luvbowties · 12-22-2012, 02:51 AM

Quote:

Originally Posted by Rudy-g

I got my new rear bumper and deluxe trac bar. There's a few issues with using this chelleve tank on a short wheel base truck.
1. The filler neck need to be shortened about 4"
2. The fuel sending unit, hard lines are also too long and hit the second cross member, To fix it I can either cut them or bend them. I'll try and bend them first
3. The rear bumper bolts up level to the frame, so if I mount the tank flush to the frame, I will need to modify the filler neck, and it will be laying flat, I'm not sure about that set up, I'm worried that the gas might leak out through my vented gas cap

Nice-looking addition you are doing, Rudy. As far as gas leaking, can't you just convert to a non-vent cap and install a vent tube with a filter about anywhere toward front/top of tank?
sam

Rudy-g · 12-22-2012, 04:35 AM

Hey Sam, well I guess I could go with a non-vented cap. When I ordered the tank, I had the option of getting a vented gas tank. I guess I should have ordered that tank. For now im going to try it out as is, if I have a problem with it leaking I'll try plan B. Sometimes we overlook the obvious.
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Rudy-g · 12-25-2012, 10:35 PM

I got the tank installed with the help of my brothers and friends. It fit good didnt have to cut the sending unit just had to bend the lines in the direction the hoses will be routed.

Rudy-g · 12-28-2012, 09:05 PM

After mounting the gas tank to the frame, the new obstacle is the filler neck. It needs to be shortened about 5 inches maybe 6.

Mustard72 · 12-28-2012, 09:29 PM

So in looking at those pictures, it doesn't appear as though the Chevelle gas tank would work with the auxilliary leaf spring (on coil spring pickups). On my C20, the aux springs attach to the outside of the frame rails, and it looks like the 'velle tank extends beyond the frame rails. Is that true?

Nice write up, by the way.

Rudy-g · 12-28-2012, 09:37 PM

I believe this chevelle gas tank may only work on short wheel base trucks that have the coil spring rear suspension, becuase it is wider than the frame.

They may work on the long wheel base trucks with either suspension.

The chevelle tanks I had seen installed were on long wheel base trucks, I ordered mine and then realized I might have screwed up. I got lucky and it fit tight but good.

I went with this gas tank because its the easiest and cheapest route I could think of. Im still working on it, but so far I'm happy with the results.

Rudy-g · 12-28-2012, 10:02 PM

bigger pic of the tank

Rudy-g · 12-28-2012, 10:03 PM

You guys interested in this swap,

I used all pre-existing holes on the frame, except for the two I made on the rear cross member for the two bolts.

k_n_browning · 12-28-2012, 11:04 PM

I know that I am.

67anthony · 12-28-2012, 11:28 PM

Looks good very interested .

70blackfish · 12-29-2012, 12:47 AM

looks good....

Rudy-g · 01-09-2013, 12:20 AM

I started up my motor, the fuel sending unit works at least up till this point.
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**Ironangel** · 01-09-2013, 07:35 AM

I'm liking it alot, except for one thing...When I nail it off the line, is any fuel going to leak from that neck & cap?

Rudy-g · 01-09-2013, 02:55 PM

I am actually going to use a newer fuel cap assembly i picked up at a junk yard I'll post some pics.

A friend of mine suggested fixing the filler neck so that you can fill it from inside the bed, If I have any problem with fuel leaking out, I might route the filler through my bed.

The member whom I got this idea from, says hes happy with his setup, although hes not running EFI and has a nonvented gas cap.

Something else one could try is fuel cell foam, maybe?
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luvbowties · 01-09-2013, 04:30 PM

A friend of mine suggested fixing the filler neck so that you can fill it from inside the bed, If I have any problem with fuel leaking out, I might route the filler through my bed.

The member whom I got this idea from, says hes happy with his setup, although hes not running EFI and has a nonvented gas cap.

Keep in mind the possibility of installing a breather on top of the tank AND running the non-vented cap.
Love the looks of this tank. Neat install!
Sam

Rudy-g · 01-09-2013, 05:25 PM

Well you can order a vented gas tank from rock auto, don't know why I went with this one?
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scott-wisc · 01-09-2013, 06:10 PM

Vented gas caps have a check valve built in. Air can go in, but not out. If you have gas coming out of your cap, replace it.

This is a '69 Camaro tank with 3" spacers.

Rudy-g · 01-09-2013, 09:43 PM

Thanks for that info, that's why I love this forum.
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hugger6933 · 01-09-2013, 10:16 PM

Forgive me if this has been covered as I have done something I never do. I have skipped to the end of the thread without reading it. I just wanted to let everyone know that if a Chevelle tank will fit, The Impala tank [like one from a SS 94-96 with the LT1] will fit as it is the same dimensionaly. I uesed one on my 68 LeMans convert when I went to the 6.0 LS1. Once again hope this may help someone and sorry if it had already been covered

Rudy-g · 01-09-2013, 11:15 PM

94-96 impala tank is 23 gallons the chevelle tank is 20 gal.

I didn't know that those cars filled from the back. I've got mine setup, it works and very affordable.

I'm thinking about a second build, so I'm going to research this impala tank.
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jks67ss396 · 01-10-2013, 06:55 PM

Concerning the 94-96 impala tank (and not to hijack this thread)

I think the impala tank has a big hump on it. Seems like the chevelle guys just cut a hole in the trunk to make room for the hump

http://www.chevelles.com/forums/show...=123036&page=2

seems like from Rudys pics, there might be room up in the frame to accommodate the hump. im going to a junkyard this weekend to try to pick up one for my 5.3 swap.

didnt mean to hijack! this is a great thread!

rogergodding · 01-24-2013, 11:45 PM

Any updated pics Rudy? Just ordered a chevelle tank for my son's lwb 72...

Rudy-g · 01-25-2013, 02:10 AM

I'll post some pics pictures this afternoon sorry been on vacation.
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Rudy-g · 01-25-2013, 02:33 AM

Here's what I ended doing with the filler neck, used one from a newer gm truck, got it at the junk yard.
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Rudy-g · 01-25-2013, 02:44 AM

I got my engine started, 2005 5.3L/4L60e
I did my own wiring harness using LT1swap.com and had the ECM reflashed
I'm happy to report that it started right up and sounds great, the chevelle tank sending unit works perfectly.

Total spent
$1300 motor/ trans
$180 Motor mounts
$125 trailblazer ss exhaust manifolds
$85 ECM reflash
$550 chevelle tank, tank straps, fuel filter, high pressure fuel hoses and fittings
Feeling of accomplishment pricele$$
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12-22-2012, 04:35 AM	#27
Rudy-g Registered User Join Date: May 2011 Location: canton NC Posts: 112	Re: Chevelle Gas Tank Swap Hey Sam, well I guess I could go with a non-vented cap. When I ordered the tank, I had the option of getting a vented gas tank. I guess I should have ordered that tank. For now im going to try it out as is, if I have a problem with it leaking I'll try plan B. Sometimes we overlook the obvious. Posted via Mobile Device

12-25-2012, 10:35 PM	#28
Rudy-g Registered User Join Date: May 2011 Location: canton NC Posts: 112	Re: Chevelle Gas Tank Swap I got the tank installed with the help of my brothers and friends. It fit good didnt have to cut the sending unit just had to bend the lines in the direction the hoses will be routed. Attached Images Last edited by Rudy-g; 12-28-2012 at 09:08 PM.

12-28-2012, 09:05 PM	#29
Rudy-g Registered User Join Date: May 2011 Location: canton NC Posts: 112	Re: Chevelle Gas Tank Swap After mounting the gas tank to the frame, the new obstacle is the filler neck. It needs to be shortened about 5 inches maybe 6. Attached Images

12-28-2012, 09:29 PM	#30
Mustard72 Registered User Join Date: Jul 2012 Location: Ladysmith, WI Posts: 641	Re: Chevelle Gas Tank Swap So in looking at those pictures, it doesn't appear as though the Chevelle gas tank would work with the auxilliary leaf spring (on coil spring pickups). On my C20, the aux springs attach to the outside of the frame rails, and it looks like the 'velle tank extends beyond the frame rails. Is that true? Nice write up, by the way. __________________ Nick Old Mustard, 1972 Chevy C20, 350, TH350, 4.10 Dana 60 rear, owned since I was 16 in 1986 http://67-72chevytrucks.com/vboard/s...d.php?t=545356 Blue Bell, 1987 K20, 6.2L Diesel, TH400/NP208, 4.10 gears Ustahav 1976 K10, 350/350/203, Gov Loc, Yooper beater trail truck.

12-28-2012, 09:37 PM	#31
Rudy-g Registered User Join Date: May 2011 Location: canton NC Posts: 112	Re: Chevelle Gas Tank Swap I believe this chevelle gas tank may only work on short wheel base trucks that have the coil spring rear suspension, becuase it is wider than the frame. They may work on the long wheel base trucks with either suspension. The chevelle tanks I had seen installed were on long wheel base trucks, I ordered mine and then realized I might have screwed up. I got lucky and it fit tight but good. I went with this gas tank because its the easiest and cheapest route I could think of. Im still working on it, but so far I'm happy with the results.

12-28-2012, 10:02 PM	#32
Rudy-g Registered User Join Date: May 2011 Location: canton NC Posts: 112	Re: Chevelle Gas Tank Swap bigger pic of the tank Attached Images

12-28-2012, 10:03 PM	#33
Rudy-g Registered User Join Date: May 2011 Location: canton NC Posts: 112	Re: Chevelle Gas Tank Swap You guys interested in this swap, I used all pre-existing holes on the frame, except for the two I made on the rear cross member for the two bolts. Last edited by Rudy-g; 12-28-2012 at 11:19 PM.

12-28-2012, 11:04 PM	#34
k_n_browning Registered User Join Date: Sep 2011 Location: McAlester Olahoma Posts: 114	Re: Chevelle Gas Tank Swap I know that I am.

12-28-2012, 11:28 PM	#35
67anthony Registered User Join Date: Jun 2011 Location: mississippi Posts: 444	Re: Chevelle Gas Tank Swap Looks good very interested .

12-29-2012, 12:47 AM	#36
70blackfish Registered User Join Date: Oct 2012 Location: Newhall CA Posts: 1,195	Re: Chevelle Gas Tank Swap looks good.... __________________ 69 SWB 780hp Hellcat powered, manual 6 speed, currie 9

01-09-2013, 12:20 AM	#37
Rudy-g Registered User Join Date: May 2011 Location: canton NC Posts: 112	Re: Chevelle Gas Tank Swap I started up my motor, the fuel sending unit works at least up till this point. Posted via Mobile Device

01-09-2013, 07:35 AM	#38
Ironangel Senior Member Join Date: Feb 2010 Location: Falls City, Nebraska "100 Miles From Nowhere" Posts: 2,219	Re: Chevelle Gas Tank Swap I'm liking it alot, except for one thing...When I nail it off the line, is any fuel going to leak from that neck & cap? __________________ Michael of the clan Hill, "Two Seventy Two's" 71 1-ton Dually 350 4-Speed 71 C/50 Grain Truck, 350 Split-Axle 4-Speed 02 3/4 ton Express 14 Indian Chief Vintage 1952 Ford 8N, "Only Ford Allowed On The Property" "Be American, Buy American"

01-09-2013, 02:55 PM	#39
Rudy-g Registered User Join Date: May 2011 Location: canton NC Posts: 112	Re: Chevelle Gas Tank Swap I am actually going to use a newer fuel cap assembly i picked up at a junk yard I'll post some pics. A friend of mine suggested fixing the filler neck so that you can fill it from inside the bed, If I have any problem with fuel leaking out, I might route the filler through my bed. The member whom I got this idea from, says hes happy with his setup, although hes not running EFI and has a nonvented gas cap. Something else one could try is fuel cell foam, maybe? Posted via Mobile Device Last edited by Rudy-g; 01-09-2013 at 05:23 PM.

01-09-2013, 04:30 PM	#40
luvbowties Registered User Join Date: Feb 2009 Location: southeasternfoothillsofusa Posts: 1,557	Re: Chevelle Gas Tank Swap A friend of mine suggested fixing the filler neck so that you can fill it from inside the bed, If I have any problem with fuel leaking out, I might route the filler through my bed. The member whom I got this idea from, says hes happy with his setup, although hes not running EFI and has a nonvented gas cap. Keep in mind the possibility of installing a breather on top of the tank AND running the non-vented cap. Love the looks of this tank. Neat install! Sam Last edited by luvbowties; 01-09-2013 at 04:36 PM. Reason: duplicate post

01-09-2013, 05:25 PM	#41
Rudy-g Registered User Join Date: May 2011 Location: canton NC Posts: 112	Re: Chevelle Gas Tank Swap Well you can order a vented gas tank from rock auto, don't know why I went with this one? Posted via Mobile Device



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01-09-2013, 06:10 PM	#42
scott-wisc Registered User Join Date: Feb 2012 Location: Wisconsin Posts: 144	Re: Chevelle Gas Tank Swap Vented gas caps have a check valve built in. Air can go in, but not out. If you have gas coming out of your cap, replace it. This is a '69 Camaro tank with 3" spacers. Attached Images Last edited by scott-wisc; 01-09-2013 at 06:18 PM.

01-09-2013, 09:43 PM	#43
Rudy-g Registered User Join Date: May 2011 Location: canton NC Posts: 112	Re: Chevelle Gas Tank Swap Thanks for that info, that's why I love this forum. Posted via Mobile Device

01-09-2013, 10:16 PM	#44
hugger6933 Registered User Join Date: Oct 2008 Location: Marianna Arkansas Posts: 7,280	Re: Chevelle Gas Tank Swap Forgive me if this has been covered as I have done something I never do. I have skipped to the end of the thread without reading it. I just wanted to let everyone know that if a Chevelle tank will fit, The Impala tank [like one from a SS 94-96 with the LT1] will fit as it is the same dimensionaly. I uesed one on my 68 LeMans convert when I went to the 6.0 LS1. Once again hope this may help someone and sorry if it had already been covered

01-09-2013, 11:15 PM	#45
Rudy-g Registered User Join Date: May 2011 Location: canton NC Posts: 112	Re: Chevelle Gas Tank Swap 94-96 impala tank is 23 gallons the chevelle tank is 20 gal. I didn't know that those cars filled from the back. I've got mine setup, it works and very affordable. I'm thinking about a second build, so I'm going to research this impala tank. Posted via Mobile Device

01-10-2013, 06:55 PM	#46
jks67ss396 Registered User Join Date: Nov 2012 Location: DFW, TX Posts: 298	Re: Chevelle Gas Tank Swap Concerning the 94-96 impala tank (and not to hijack this thread) I think the impala tank has a big hump on it. Seems like the chevelle guys just cut a hole in the trunk to make room for the hump http://www.chevelles.com/forums/show...=123036&page=2 seems like from Rudys pics, there might be room up in the frame to accommodate the hump. im going to a junkyard this weekend to try to pick up one for my 5.3 swap. didnt mean to hijack! this is a great thread! Last edited by jks67ss396; 01-10-2013 at 06:56 PM. Reason: wrong link

01-24-2013, 11:45 PM	#47
rogergodding Registered User Join Date: Aug 2007 Location: Sachse, Texas Posts: 614	Re: Chevelle Gas Tank Swap Any updated pics Rudy? Just ordered a chevelle tank for my son's lwb 72...

01-25-2013, 02:10 AM	#48
Rudy-g Registered User Join Date: May 2011 Location: canton NC Posts: 112	Re: Chevelle Gas Tank Swap I'll post some pics pictures this afternoon sorry been on vacation. Posted via Mobile Device

01-25-2013, 02:33 AM	#49
Rudy-g Registered User Join Date: May 2011 Location: canton NC Posts: 112	Re: Chevelle Gas Tank Swap Here's what I ended doing with the filler neck, used one from a newer gm truck, got it at the junk yard. Posted via Mobile Device Attached Images

01-25-2013, 02:44 AM	#50
Rudy-g Registered User Join Date: May 2011 Location: canton NC Posts: 112	Re: Chevelle Gas Tank Swap I got my engine started, 2005 5.3L/4L60e I did my own wiring harness using LT1swap.com and had the ECM reflashed I'm happy to report that it started right up and sounds great, the chevelle tank sending unit works perfectly. Total spent $1300 motor/ trans $180 Motor mounts $125 trailblazer ss exhaust manifolds $85 ECM reflash $550 chevelle tank, tank straps, fuel filter, high pressure fuel hoses and fittings Feeling of accomplishment pricele$$ Posted via Mobile Device

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