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Old 07-22-2009, 09:04 PM   #3
glock35ipsc
Next project: 1970 K10
 
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Join Date: Feb 2004
Location: Fort Collins, Colo 80524
Posts: 6,684
Re: ls1 swap question fuel tanks

I'm in the midst of buying all my fuel system parts. Here is a write-up I did for a couple members here and on couple other forums:

Quote:
* AC Delco EP381 in-tank pumps. $69 each at http://store.getgmparts.com/fe0114.html
* Pollak high psi tank selector valve, this is a direct OEM replacement (JC Whitney p/n ZX812705U) $83
* Fuel selector switch from an 87, replaces existing dash switch (AC Delco p/n D7089C) $11.50 at rockauto.com
* Corvette filter/regulator if running a returnless/1 line system (WIX p/n 33737) $34 at rockauto.com

If you don't already have in-tank pumps, you'll need sending units:

* Dorman p/n 692027 for the driver side, $94 at rockauto.com
* Dorman p/n 692044 for the passenger side, $101 at rockauto.com

To make the connections at the filter/regulator:

The inexpensive way:
* 3/8" female connector (Dorman p/n 800121) $6.30 at rockauto.com
* 5/16" female connector (Dorman p/n 800120) $6.30 at rockauto.com
* 3/8" x 12" double ended male connector (Dorman p/n 800120) $8.20 at rockauto.com

The "nicer looking" way:
* 3/8" to -6AN straight fitting, Russell #640850 (this one is also is needed for connection to the fuel rail)
* 5/16" to -6 AN straight fitting, Russell #640860
* -6AN to -6AN union, Russell #660350
* -6AN tube sleeve, Russell #660650
* -6AN tube nut, Russell #660571
* 3/8" x 12" double ended male connector (Dorman p/n 800120) $8.20 at rockauto.com

And be sure to use a good quality high psi fuel pressure hose for connections, not regular fuel line. And use smooth stainless fuel hose clamps that look like these:

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Bob

1970 Chevy K10 LWB "Goldie" 350/TH350 next project!!
1981 Chevy C10 LWB 355/TH350 - My son's truck

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