Posted By: ringo440
68 GTX FUEL LINE SIZE - 06/12/11 08:19 PM
I need know what size fuel line came on a 68 GTX with 440 engine
5/16 or 3/8 thanks
5/16 or 3/8 thanks
68 GTX FUEL LINE SIZE
Posted By: A12
Re: 68 GTX FUEL LINE SIZE - 06/13/11 06:58 AM
I think maybe only the Hemi got the bigger fuel line.......I say 5/16 for the 440 but 
Posted By: 440beep
Re: 68 GTX FUEL LINE SIZE - 06/13/11 12:12 PM
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
Posted By: ringo440
Re: 68 GTX FUEL LINE SIZE - 06/13/11 02:09 PM
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
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
Posted By: RoadRunnerJD
Re: 68 GTX FUEL LINE SIZE - 06/13/11 08:51 PM
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!
Posted By: A12
Re: 68 GTX FUEL LINE SIZE - 06/13/11 11:00 PM
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
Posted By: gtx6970
Re: 68 GTX FUEL LINE SIZE - 06/14/11 01:27 AM
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
3/8" sender and a 5/16" line with a 1/4" return is factory correct
Posted By: ringo440
Re: 68 GTX FUEL LINE SIZE - 06/14/11 01:54 AM
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.
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.
Posted By: FJ5_Fish
Re: 68 GTX FUEL LINE SIZE - 06/15/11 10:25 PM
That is correct!
Posted By: ringo440
Re: 68 GTX FUEL LINE SIZE - 06/16/11 02:56 AM
Thanks, I guess i need to break out the lube. 
Posted By: FJ5_Fish
Re: 68 GTX FUEL LINE SIZE - 06/16/11 03:01 AM
I was going to say something like that in my post but left it......
Posted By: Furyman
Re: 68 GTX FUEL LINE SIZE - 06/16/11 05:02 AM
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.
Posted By: gtx6970
Re: 68 GTX FUEL LINE SIZE - 06/16/11 11:59 AM
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
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
Posted By: 52savoy
Re: 68 GTX FUEL LINE SIZE - 06/16/11 05:09 PM
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.
So does that mean anything...
oh..and I also have the vapor canister...same as a Hemi.
Posted By: FJ5_Fish
Re: 68 GTX FUEL LINE SIZE - 06/16/11 11:26 PM
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.
Posted By: 1_WILD_RT
Re: 68 GTX FUEL LINE SIZE - 06/16/11 11:32 PM
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....