Re: 68 GTX 440 fuel system?
[Re: NITROUSN]
#2786794
06/18/20 01:10 PM
06/18/20 01:10 PM
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Joined: Jan 2003
Posts: 25,727
Rio Linda, CA
John_Kunkel
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 25,727
Rio Linda, CA
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FWIW, the '68 parts manual shows only 5/16" for the fuel supply.
The INTERNET, the MISinformation superhighway
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Re: 68 GTX 440 fuel system?
[Re: Chally426]
#2786832
06/18/20 02:19 PM
06/18/20 02:19 PM
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Joined: Dec 2003
Posts: 4,951
northwest USA
NANKET
master
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master
Joined: Dec 2003
Posts: 4,951
northwest USA
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What would be correct for this car? 5/16" I'm guessing, also, would there be a return line of any kind?
Thanks What was the factory transmission for this car? 4 speed for automatic? It makes all the difference.
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Re: 68 GTX 440 fuel system?
[Re: gtx6970]
#2786945
06/18/20 08:18 PM
06/18/20 08:18 PM
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Joined: Jan 2003
Posts: 18,406
UPPER MICHIGAN, MARQUETTE COUN...
NITROUSN
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 18,406
UPPER MICHIGAN, MARQUETTE COUN...
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Ive never owned a 1968.
But. Have owned 4 of a 1969 GTXs. All 440 cars . And none have had the 3/8" main line.
All 4 have been 5/16 with the 1/4" return line.
3 of them St Louis built....1 was Lynch road i think I might be wrong but I do not think I have ever seen a 68-70 tank sender with 5/16 and a 1/4 return. As far as I know they were only 3/8 and 1/4.
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Re: 68 GTX 440 fuel system?
[Re: NITROUSN]
#2786963
06/18/20 09:36 PM
06/18/20 09:36 PM
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Joined: Jun 2003
Posts: 21,397
It's a dry heat
gtx6970
Too Many Posts
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Too Many Posts
Joined: Jun 2003
Posts: 21,397
It's a dry heat
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Ive never owned a 1968.
But. Have owned 4 of a 1969 GTXs. All 440 cars . And none have had the 3/8" main line.
All 4 have been 5/16 with the 1/4" return line.
3 of them St Louis built....1 was Lynch road i think I might be wrong but I do not think I have ever seen a 68-70 tank sender with 5/16 and a 1/4 return. As far as I know they were only 3/8 and 1/4. thats the odd part. every one had the correct 3/8" sender with the 1/4" return , yet ALL 4 cars had the 5/16" main line with the 1/4" return line beside it
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Re: 68 GTX 440 fuel system?
[Re: Chally426]
#2787623
06/21/20 01:33 AM
06/21/20 01:33 AM
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Joined: Jul 2005
Posts: 707
California
BigDaddy440
super stock
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super stock
Joined: Jul 2005
Posts: 707
California
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I can tell you that my 68 Dodge R/T with a 440 and auto-trans had 3/8" fuel line from the factory. Interestingly, A12 (440 Six Pack / BBL) Roadrunners and Super Bees had 5/16" fuel lines, at least that's my experience.
1969 A12 Roadrunner
1970 Plymouth Cuda
1968 Dodge Dart
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Re: 68 GTX 440 fuel system?
[Re: BigDaddy440]
#2787626
06/21/20 01:46 AM
06/21/20 01:46 AM
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Joined: Jan 2003
Posts: 17,514
Las Vegas, NV
6bblgt
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 17,514
Las Vegas, NV
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I can tell you that my 68 Dodge R/T with a 440 and auto-trans had 3/8" fuel line from the factory. Interestingly, A12 (440 Six Pack / BBL) Roadrunners and Super Bees had 5/16" fuel lines, at least that's my experience.
that is correct, because A12 cars are 383 cars with a drivetrain upgrade & the fuel system was NOT modified/changed
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Re: 68 GTX 440 fuel system?
[Re: Chally426]
#2788991
06/24/20 09:15 PM
06/24/20 09:15 PM
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Joined: Jul 2005
Posts: 707
California
BigDaddy440
super stock
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super stock
Joined: Jul 2005
Posts: 707
California
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Well... Found a pic during the tear down.. but cant post it for some reason.....Looks like 2 lines for sure.. So would you say 3/8" and 1/4" return line with a fuel separator? That sounds right to me.
1969 A12 Roadrunner
1970 Plymouth Cuda
1968 Dodge Dart
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& vapor separator behind alternator
