Fuel return line vs. no return line

68conv455 · March 31st, 2008, 06:53 PM

I'm progressing with my 455 swap and I'm not sure how to proceed with the fuel line. My old 1968 inline 6 has two ports on top of the fuel pump. One from the tank, the other to the carb. The fuel pump on the 455 (from 71 delta) has three ports on the fuel pump. One in, one to the carb, and I assume the other is for a return line to the tank. Am I correct with this assumption? Do I need to run a return line back to the tank? Can I just plug this port? Any help is appreciated.
Thanks.

68conv455 · April 2nd, 2008, 06:57 PM

Can anyone give me direction on this? Thanks.

Redog · April 2nd, 2008, 09:40 PM

My car has 2 lines like you are talking about, all I did was buy a new fuel pump with a 2 line set up. It was only $25 on ebay, brand new. It was for a 455.

I'm sure if you only have a 2 line system, you can just go over to eBay and get a 2 line pump, they have them on there too

ramnation1 · May 20th, 2008, 03:03 PM

YES you can plug it. Use the ones you need,a nd just plug the other one... I did the same thing. It won't be *SHOW* but it does the trick The pump works fine it is just that one thing that makes it different (it's for a four barrel not a two) make sure she is PLUGGED THOUGH LOL

March 31st, 2008, 06:53 PM	#1 (permalink)
68conv455 Registered User Join Date: Oct 2007 Posts: 260	Fuel return line vs. no return line I'm progressing with my 455 swap and I'm not sure how to proceed with the fuel line. My old 1968 inline 6 has two ports on top of the fuel pump. One from the tank, the other to the carb. The fuel pump on the 455 (from 71 delta) has three ports on the fuel pump. One in, one to the carb, and I assume the other is for a return line to the tank. Am I correct with this assumption? Do I need to run a return line back to the tank? Can I just plug this port? Any help is appreciated. Thanks.

April 2nd, 2008, 09:40 PM	#3 (permalink)
Redog Alero Chapter Secretary Join Date: Aug 2006 Location: Newtown, PA Posts: 1,145	My car has 2 lines like you are talking about, all I did was buy a new fuel pump with a 2 line set up. It was only $25 on ebay, brand new. It was for a 455. I'm sure if you only have a 2 line system, you can just go over to eBay and get a 2 line pump, they have them on there too __________________ Me 2000 Alero running 14's 2005 Nissan Altima (her's) 1967 Olds 330 motor sitting on a stand 1985 Delta 88 w/1968 350 rocket ( MURDERED )

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April 2nd, 2008, 06:57 PM	#2 (permalink)
68conv455 Registered User Join Date: Oct 2007 Posts: 260	Can anyone give me direction on this? Thanks.

May 20th, 2008, 03:03 PM	#4 (permalink)
ramnation1 Junior Member Join Date: May 2008 Location: CDA IDAHO Posts: 20	YES you can plug it. Use the ones you need,a nd just plug the other one... I did the same thing. It won't be SHOW but it does the trick The pump works fine it is just that one thing that makes it different (it's for a four barrel not a two) make sure she is PLUGGED THOUGH LOL