[Chevelle-list] B-body fuel tank/9C1 goodies

[the.cat at codding.org]

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I'm a bit late to this discussion, but...

I'm installing TPI + Megasquirt system, so I needed a high-pressure 
fuel pump. It's easier to pull it from my local wrecker's than it would 
be to sump my stock tank.

There are several kinds of B-body fuel tank that I have found: sedan, 
wagon, 9C1, TBI, and LT1. The TBI fuel pumps operate at a lower 
pressure than the LT1. The sedan tanks have the fill behind the license 
plate, and the wagon tanks have the fill on the left (I think) side. I 
actually bought a TBI tank from a 91 Cadillac, but it was not baffled 
inside. I returned it and pulled one from a 95 LT1 police (9C1 code) 
Caprice. (While I was at it, I pulled the fast-ratio steering box, rear 
disc setup, master cyl + distribution block, and front spindles with 
12" discs. Total spent? $140. Yeah!)  This tank is baffled. The tanks 
are externally identical.

The tanks are about 1.5" too wide to fit between the framerails on my 
67. (framerail gap: 38", tank 39.5" wide) The internet rumour mill has 
them fitting a bit better in the 70-72 style, but I don't happen to 
have one of them on hand for measuring. The Caprice also had sheetmetal 
stone shields to protect the tank, as well as some mounting straps that 
look a bit beefier than the stock ones. As well, I cut a section of the 
trunk floor from the Caprice - it's raised to clear the pump and hoses 
from the tank. Some people put in access doors into the trunk floor.

New 9C1 Caprice fuel lines from GM cost about $200, so if they look to 
be in good shape at the wrecker, grab them too. You'll need a special 
tool to disconnect them from the tank.

While you're at it, take the rear sway bar as well. You'll need stock 
rear control arms to use it - it installs under the arms, not bolted 
between them. Apparently the front sway bars fit as well, but the one I 
got is about 3" too wide for my chassis.

I hope this info helps, and I've been phoning around to rent a plasma 
cutter all afternoon. Looking like the grinder's going to come out for 
this one...

Dave.

On Aug 28, 2007, at 8:28 PM, Josh Egler wrote:

> We had to do a small amount of trimming, but yes it just does fit 
> between the rails.  It is also really just a little too wide (front to 
> back)  to sit clear against the braces like a stock tank.  It would 
> work, just not quite as well as I wanted it to. 
>
> I ended up cutting the brace just in front of where the hold down 
> attaches and basically flattened it out, giving the tank just a little 
> more room to tuck up closer to the body.
>
>
>
>  On 8/28/07, Rick Schaefer <rickas at gmail.com> wrote:
>>
>>
>> On 8/28/07, Josh Egler <jbegler at gmail.com> wrote: Out the back just 
>> like the Chevelle.  There is a filler neck that connects to the tank 
>> with rubber hose.  It might take a little modification, but it will 
>> work great
>>>
>>>
>>>
>>>
>>> On 8/28/07, mike f <dslwizard at yahoo.com> wrote: Where is the filler 
>>> neck?
>>>>
>>>> ----- Original Message ----
>>>> From: Rick Schaefer < rickas at gmail.com>
>>>> To: The Chevelle Mailing List <chevelle-list at chevelles.net>
>>>> Sent: Tuesday, August 28, 2007 2:31:28 PM
>>>> Subject: Re: [Chevelle-list] Trimming the framerail, what cutter?
>>>>
>>>>
>>>>   What advantage does the Caprice tank offer?   In-tank pump?
>>>>
>>>> On 8/28/07, Josh Egler <jbegler at gmail.com > wrote: I agree totally, 
>>>> a plasma cutter will make this only a few minute job.  I also 
>>>> installed a tank from a 95 Caprice
>>>>>
>>>>> Josh
>>>>>
>>>>>
>>>>> On 8/28/07, Dan at Earthlink < danmcintosh at earthlink.net > wrote: If 
>>>>> you have access to a plasma cutter, by all means, use that.  If 
>>>>> you do not, then use a cut off wheel on a 4 1/2" grinder.  Wear 
>>>>> goggles!
>>>>>>  
>>>>>> Dan McIntosh
>>>>>> Street Metal Fabrications
>>>>>> http://www.lowriderimpala.com
>>>>>>  
>>>>>>  
>>>>>>>
>>>>>>> ----- Original Message -----
>>>>>>> From: the.cat at codding.org
>>>>>>> To:  The Chevelle Mailing List
>>>>>>> Sent: Monday, August 27, 2007 11:29 PM
>>>>>>> Subject: [Chevelle-list] Trimming the framerail, what cutter?
>>>>>>>
>>>>>>>  
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>>>>>>>
>>>>>>> Hiya,
>>>>>>>
>>>>>>> I'm installing a fuel tank from a 95 Caprice as part of my 
>>>>>>> engine swap,
>>>>>>> and I need to cut 3/4" off each lower framerail to do it. What's 
>>>>>>> the
>>>>>>> best tool to use?
>>>>>>>
>>>>>>> Dave.
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>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> --
>>>>>>> No virus found in this incoming message.
>>>>>>> Checked by AVG Free Edition.
>>>>>>> Version: 7.5.484 / Virus Database: 269.12.9/975 - Release Date: 
>>>>>>> 8/26/2007 9:34 PM
>>>>>>>
>>>>
>>>>
>>>>
>>>> -- 
>>>> Rick Schaefer
>>>> 72 TPI El Camino
>>>>
>>>>
>>>>
>>>>  Be a better Globetrotter. Get better travel answers from someone 
>>>> who knows.
>>>> Yahoo! Answers - Check it out.
>>
>>
>> -- 
>> Rick Schaefer
>> 72 TPI El Camino
>>
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