Fuel tank/pump - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Iceburgh · 03-08-2014, 06:48 PM

Guys need some help.
Here is the tank I have.
The motor is a LS3 465 hp.

Should I use a external pump? If so which one. I have something similar now on a 383 with aftermarket injection with no return line and no issues
Or internal....I don't know anything about internal is there a kit that I cut the tank and mount? Not sure how the pump stands up in the tank.
What about flow rate?

Thanks in advance

Andy4639 · 03-08-2014, 07:31 PM

Yes you will have to cut the tank if you want a internal pump. Does this tank have the baffels? If not you may want to stick to the inline pump. You don't want to starve the internal pump for gas when low on fuel.

Big Port Jimmy 6 · 03-08-2014, 10:08 PM

You need one of these, Call Doc and he will send one out. Tell him Jay said to call. Just a hole saw cut away from an in tank pump.
http://docskustom.com/shop/viewitem.php?productid=486

Andy4639 · 03-09-2014, 02:00 AM

Quote:

Originally Posted by Big Port Jimmy 6

You need one of these, Call Doc and he will send one out. Tell him Jay said to call. Just a hole saw cut away from an in tank pump.
http://docskustom.com/shop/viewitem.php?productid=486

That would work just fine. I like the internal pump much better than the inline pumps. Just my opinion though!

BigDan3131 · 03-09-2014, 04:45 AM

The other internal option is this one: http://www.summitracing.com/search/b...s?autoview=SKU .
Its more money but its a known name brand that can support almost anything you can throw at it.

Iceburgh · 03-09-2014, 03:21 PM

thanks for the reply's. Some of this is nice but to rich for what I am doing

woodwright · 03-10-2014, 02:43 AM

There is an OEM option. When GM started using plastic tanks, they went with a fuel pump module so they wouldn't need baffles. Basically the pump sits in a cup that is held on the bottom by springs. They come in different heights depending on the depth of the tank. For example, I found one from an 02 Silverado. The module is 15" tall, but it compresses down to 12". And there are others that are shorter. You can find new modules on ebay for less than $100, or look in your local wrecking yards.

03-08-2014, 06:48 PM	#1
Iceburgh Registered User Join Date: Jan 2014 Location: New Bloomfield pa. Posts: 644	Fuel tank/pump Guys need some help. Here is the tank I have. The motor is a LS3 465 hp. Should I use a external pump? If so which one. I have something similar now on a 383 with aftermarket injection with no return line and no issues Or internal....I don't know anything about internal is there a kit that I cut the tank and mount? Not sure how the pump stands up in the tank. What about flow rate? Thanks in advance

03-08-2014, 07:31 PM	#2
Andy4639 Old member Join Date: Jan 2002 Location: Liberty, & Garden City S.C. , U.S. Posts: 19,936	Re: Fuel tank/pump Yes you will have to cut the tank if you want a internal pump. Does this tank have the baffels? If not you may want to stick to the inline pump. You don't want to starve the internal pump for gas when low on fuel. __________________ 1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs.

03-08-2014, 10:08 PM	#3
Big Port Jimmy 6 Addicted to Rust Join Date: Dec 2009 Location: Abbeville SC Posts: 1,030	Re: Fuel tank/pump You need one of these, Call Doc and he will send one out. Tell him Jay said to call. Just a hole saw cut away from an in tank pump. http://docskustom.com/shop/viewitem.php?productid=486 __________________ Current trucks: (48 GMC100 320 inliner) Gone (48 Suburban in pieces) Sold 87 GMC CCSB 5.3 4l60E Daily Driver ECTA National record holder XO/PP We never really grow up, we just learn how to act in public.

03-09-2014, 04:45 AM	#5
BigDan3131 Registered User Join Date: Jun 2006 Location: Maple Valley, WA Posts: 1,913	Re: Fuel tank/pump The other internal option is this one: http://www.summitracing.com/search/b...s?autoview=SKU . Its more money but its a known name brand that can support almost anything you can throw at it. __________________ Custom Painter/Restoration Specialist 1965 GMC 3/4 Ton LB SOLD? 1964 Chevy El Camino in full restoration 1991 Chevy S10 288K+ miles 2nd Owner SOLD 2020 RAM 1500 Warlock

03-09-2014, 03:21 PM	#6
Iceburgh Registered User Join Date: Jan 2014 Location: New Bloomfield pa. Posts: 644	Re: Fuel tank/pump thanks for the reply's. Some of this is nice but to rich for what I am doing

03-10-2014, 02:43 AM	#7
woodwright Enjoying left field Join Date: Jun 2008 Location: Dillon Montana Posts: 900	Re: Fuel tank/pump There is an OEM option. When GM started using plastic tanks, they went with a fuel pump module so they wouldn't need baffles. Basically the pump sits in a cup that is held on the bottom by springs. They come in different heights depending on the depth of the tank. For example, I found one from an 02 Silverado. The module is 15" tall, but it compresses down to 12". And there are others that are shorter. You can find new modules on ebay for less than $100, or look in your local wrecking yards. __________________ Clint 70 Chevy 4WD "Ultimate Work Truck" SOLD



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