Will 20 gallon sender work in 16 gallon tank. - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**rs74** · 03-12-2013, 11:26 PM

I am going to have to buy new tanks after I shorten the frame on my K10. Can I keep the old sending unit from the 20g tank? I will need to see what shape they are in but if they are good then it would be nice to use them instead of buyng new.

BLE 'BURBAN · 03-13-2013, 02:44 AM

Yes.
THe tanks depths are identical. The 16g is just shorter than the 20g tank

*mrhino* · 03-13-2013, 07:33 AM

agreed!

**rs74** · 03-13-2013, 08:44 AM

Quote:

Originally Posted by BLE 'BURBAN

Yes.
THe tanks depths are identical. The 16g is just shorter than the 20g tank

That was my perception but I wanted to make sure. Thanks.

bohmankid · 03-13-2013, 01:12 PM

While on the subject, would a 20 gallon sender work in a 31 gallon suburban tank??

83GMCK2500 · 03-13-2013, 01:35 PM

Quote:

Originally Posted by bohmankid

While on the subject, would a 20 gallon sender work in a 31 gallon suburban tank??

The fill neck vent line for a 'burban tank is part of the sending unit, waaay different from truck style. Plus, rest of the tubes are facing different directions.

bohmankid · 03-13-2013, 03:01 PM

Quote:

Originally Posted by 83GMCK2500

The fill neck vent line for a 'burban tank is part of the sending unit, waaay different from truck style. Plus, rest of the tubes are facing different directions.

I see, thank you. Is there a difference in sending units for the pre 86 sending units and the 87-91? I know the tanks are different. I'm going to be using a baffled tank for my 5.3 swap.

83GMCK2500 · 03-13-2013, 03:07 PM

Quote:

Originally Posted by bohmankid

I see, thank you. Is there a difference in sending units for the pre 86 sending units and the 87-91? I know the tanks are different. I'm going to be using a baffled tank for my 5.3 swap.

Yes. 87+ units have an electric fuel pump on them for the TBI engines.

Tank openings are all the same, so you *could* technically put an 87+ sending unit/pump into an older tank, but it wouldn't have the baffles. Baffled would be my choice though.

bohmankid · 03-13-2013, 03:23 PM

Quote:

Originally Posted by 83GMCK2500

Yes. 87+ units have an electric fuel pump on them for the TBI engines.

Tank openings are all the same, so you *could* technically put an 87+ sending unit/pump into an older tank, but it wouldn't have the baffles. Baffled would be my choice though.

Thanks for the info. after a little research it looks like I'll be buying the 4 tube sending unit for the 87-91 burbans. something like this or this. I'm replacing my fuel pump as well with a high pressure pump for my swap.

03-12-2013, 11:26 PM	#1
rs74 Senior Member Join Date: Jun 2010 Location: Illinois Posts: 2,957	Will 20 gallon sender work in 16 gallon tank. I am going to have to buy new tanks after I shorten the frame on my K10. Can I keep the old sending unit from the 20g tank? I will need to see what shape they are in but if they are good then it would be nice to use them instead of buyng new. __________________ Roy 85 Short Bed Silverado- Work in progress. http://67-72chevytrucks.com/vboard/s...d.php?t=564818 1987 R10 shortie

03-13-2013, 02:44 AM	#2
BLE 'BURBAN In the Forgotten far North. Join Date: Jul 2007 Location: Anchorage, Alaska Posts: 2,627	Re: Will 20 gallon sender work in 16 gallon tank. Yes. THe tanks depths are identical. The 16g is just shorter than the 20g tank __________________ 1987 R3500 CREW CAB DUALLY (BIG RED)Acquired 06/12/2015 1990 chevy suburban V2500 5.7L My cluster Mods-Nov 2007 overhead console Stereo install Round 2 Aug 2009 Heated/turn signal mirror upgrade

03-13-2013, 07:33 AM	#3
mrhino Account Suspended Join Date: Aug 2007 Location: USA Posts: 1,223	Re: Will 20 gallon sender work in 16 gallon tank. agreed!

03-13-2013, 01:12 PM	#5
bohmankid Registered User Join Date: Nov 2012 Location: Salt Lake City, UT Posts: 520	Re: Will 20 gallon sender work in 16 gallon tank. While on the subject, would a 20 gallon sender work in a 31 gallon suburban tank?? __________________ My 1985 GMC 4x4 LS swap build thread R.I.P. My 1978 Big Ten, Big Block build thread Moby: My Chevy 4x4 ls swap build thread



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