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68 GTX FUEL LINE SIZE #1012189 06/12/11 04:19 PM 06/12/11 04:19 PM
Joined: Nov 2005 Posts: 235 ga R ringo440 OP enthusiast
ringo440 OP enthusiast R Joined: Nov 2005 Posts: 235 ga	I need know what size fuel line came on a 68 GTX with 440 engine 5/16 or 3/8 thanks

Re: 68 GTX FUEL LINE SIZE [Re: ringo440] #1012190 06/13/11 02:58 AM 06/13/11 02:58 AM
Joined: Jan 2003 Posts: 21,524 N.E. OHIO, USA A12 Too Many Posts
A12 Too Many Posts Joined: Jan 2003 Posts: 21,524 N.E. OHIO, USA	I think maybe only the Hemi got the bigger fuel line.......I say 5/16 for the 440 but

Re: 68 GTX FUEL LINE SIZE [Re: ringo440] #1012191 06/13/11 08:12 AM 06/13/11 08:12 AM
Joined: Oct 2003 Posts: 1,183 eganville ont 4 440beep super stock
440beep super stock 4 Joined: Oct 2003 Posts: 1,183 eganville ont	Quote: I need know what size fuel line came on a 68 GTX with 440 engine 5/16 or 3/8 thanks 3/8 fuel line and 1/4 RETURN LINE Last edited by 440beep; 06/13/11 08:14 AM. Plymouth's gonna getcha! There are 3 things that will live forever, cockroaches, Keith Richards, & slant 6 Dusters 71 gtx 440 4speed air grabber blue on blue with white vinyl roof

Re: 68 GTX FUEL LINE SIZE [Re: 440beep] #1012192 06/13/11 10:09 AM 06/13/11 10:09 AM
Joined: Nov 2005 Posts: 235 ga R ringo440 OP enthusiast
ringo440 OP enthusiast R Joined: Nov 2005 Posts: 235 ga	when i got the car the gas tank and lines was missing off the car, but the guy i got it from said it had 5/16 fuel line and 1/4 vapor line.i was told by a friend that it should be 3/8 - 1/4 3/8 sending unit. now can anyone tell me for sure what i need

Re: 68 GTX FUEL LINE SIZE [Re: A12] #1012193 06/13/11 04:51 PM 06/13/11 04:51 PM
Joined: May 2004 Posts: 5,123 Warrenton, VA RoadRunnerJD master
RoadRunnerJD master Joined: May 2004 Posts: 5,123 Warrenton, VA	Quote: I think maybe only the Hemi got the bigger fuel line.......I say 5/16 for the 440 but Mike, I can't believe you have any doubt about this? All 69 and earlier 440 and 440-6 had a 5/16". Only the Hemi had a 3/8". I have replaced many original sets of lines on both and this has been discussed on the Forum(s) often. Personally, I go with the 3/8" Hemi set when I replace my 440 lines. It's an upgrade that I like to do...along with the 70 Carter fuel pump replacement which has a 3/8" inlet. I use 5/16" out from there. Looks perfectly stock!

Re: 68 GTX FUEL LINE SIZE [Re: RoadRunnerJD] #1012194 06/13/11 07:00 PM 06/13/11 07:00 PM
Joined: Jan 2003 Posts: 21,524 N.E. OHIO, USA A12 Too Many Posts
A12 Too Many Posts Joined: Jan 2003 Posts: 21,524 N.E. OHIO, USA	Quote: Quote: I think maybe only the Hemi got the bigger fuel line.......I say 5/16 for the 440 but Mike, I can't believe you have any doubt about this? All 69 and earlier 440 and 440-6 had a 5/16". Only the Hemi had a 3/8". I have replaced many original sets of lines on both and this has been discussed on the Forum(s) often. Personally, I go with the 3/8" Hemi set when I replace my 440 lines. It's an upgrade that I like to do...along with the 70 Carter fuel pump replacement which has a 3/8" inlet. I use 5/16" out from there. Looks perfectly stock! John, nobody was commenting so I thought I'd throw something out to kickstart the thread.....still it was for a '68 440 and didn't really know details on '68 440's......that's my story and I'm sticking to it MikeR

Re: 68 GTX FUEL LINE SIZE [Re: ringo440] #1012195 06/13/11 09:27 PM 06/13/11 09:27 PM
Joined: Jun 2003 Posts: 21,442 It's a dry heat gtx6970 Too Many Posts
gtx6970 Too Many Posts Joined: Jun 2003 Posts: 21,442 It's a dry heat	1969 and older - only the Hemi got the 3/8" main line 3/8" sender and a 5/16" line with a 1/4" return is factory correct

Re: 68 GTX FUEL LINE SIZE [Re: gtx6970] #1012196 06/13/11 09:54 PM 06/13/11 09:54 PM
Joined: Nov 2005 Posts: 235 ga R ringo440 OP enthusiast
ringo440 OP enthusiast R Joined: Nov 2005 Posts: 235 ga	Thanks for all the input. the gas filter has 3/8 and 1/4 nipples the and the metal line are 5/16 going to carb .is this right? and i force the 5/16 rubber hose over 3/8 filter.

Re: 68 GTX FUEL LINE SIZE [Re: ringo440] #1012197 06/15/11 06:25 PM 06/15/11 06:25 PM
Joined: Aug 2005 Posts: 1,294 Ontario, Canada FJ5_Fish pro stock
FJ5_Fish pro stock Joined: Aug 2005 Posts: 1,294 Ontario, Canada	That is correct!

Re: 68 GTX FUEL LINE SIZE [Re: FJ5_Fish] #1012198 06/15/11 10:56 PM 06/15/11 10:56 PM
Joined: Nov 2005 Posts: 235 ga R ringo440 OP enthusiast
ringo440 OP enthusiast R Joined: Nov 2005 Posts: 235 ga	Thanks, I guess i need to break out the lube.

Re: 68 GTX FUEL LINE SIZE [Re: ringo440] #1012199 06/15/11 11:01 PM 06/15/11 11:01 PM
Joined: Aug 2005 Posts: 1,294 Ontario, Canada FJ5_Fish pro stock
FJ5_Fish pro stock Joined: Aug 2005 Posts: 1,294 Ontario, Canada	I was going to say something like that in my post but left it......

Re: 68 GTX FUEL LINE SIZE [Re: FJ5_Fish] #1012200 06/16/11 01:02 AM 06/16/11 01:02 AM
Joined: Jan 2003 Posts: 2,601 Great White North Furyman master
Furyman master Joined: Jan 2003 Posts: 2,601 Great White North	I'm with 440 Beep.Every 68 and 69 L code I've seen has 3/8" sender,3/8" main line 1/4" return and 3/8" pump inlet with 5/16" from pump to carb. "Long Live Mopars"

Re: 68 GTX FUEL LINE SIZE [Re: Furyman] #1012201 06/16/11 07:59 AM 06/16/11 07:59 AM
Joined: Jun 2003 Posts: 21,442 It's a dry heat gtx6970 Too Many Posts
gtx6970 Too Many Posts Joined: Jun 2003 Posts: 21,442 It's a dry heat	Nigel, I'm just the opposite. I've never seen anything but a 5/16" main line on any non Hemi car I've worked on. I just removed the 100% factory original fuel lines, tank and sender off a 1969 Charger R/T It had the typical 3/8" sender but everything else is 5/16" and a standard 1/4" return all 4 of my 1969 GTX's have been exactly the same way. Friend of mines 68 GTX I did work on this past fall is the same. I have a 440 Daytona coming in soon, and I'll ck it. Recently I have had a customer saying his Daytona was 100% factory original with a 3/8" main line as you mentioned. So maybe it's a late in the model year date thing. OR possibly a build plant nuance. My old '69 GTX's were - 2 - St Louis plants - 1 = Jan 69 build + 1 = Feb 69 build dates 2- Lynch Rd plants ( no idea of the build dates - I'll see if I can find my old paperwork on the 2 cars) I'll ck the 1969 Charger I have in house today

Re: 68 GTX FUEL LINE SIZE [Re: gtx6970] #1012202 06/16/11 01:09 PM 06/16/11 01:09 PM
Joined: Dec 2005 Posts: 4,242 State of retirement 5 52savoy master
52savoy master 5 Joined: Dec 2005 Posts: 4,242 State of retirement	I'm not an expert or even close but I can tell you that I have a gas tank pick-up that was removed from a junkyard '68 GTX(440) about 20 years ago and it's 3/8". So does that mean anything... oh..and I also have the vapor canister...same as a Hemi.

Re: 68 GTX FUEL LINE SIZE [Re: 52savoy] #1012203 06/16/11 07:26 PM 06/16/11 07:26 PM
Joined: Aug 2005 Posts: 1,294 Ontario, Canada FJ5_Fish pro stock
FJ5_Fish pro stock Joined: Aug 2005 Posts: 1,294 Ontario, Canada	Yes - The sending units were 3/8. The line from the sender to the fuel pump is 5/16". Talking 68/69 here. Many people swear their cars have a 3/8" until they measure it properly.

Re: 68 GTX FUEL LINE SIZE [Re: FJ5_Fish] #1012204 06/16/11 07:32 PM 06/16/11 07:32 PM
Joined: Jan 2004 Posts: 27,347 Today? Who Knows? 1_WILD_RT Management Trainee
1_WILD_RT Management Trainee Joined: Jan 2004 Posts: 27,347 Today? Who Knows?	My 68 R/T had a 5/16' main fuel line & 1/4" return.. It's going back together with a 3/8" main & 1/4" return.... "The Armies of our ancestors were lucky, in that they were not trailed by a second army of pencil pushers."

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