What size for fuel lines?

[In The Ten Ring]

OK....so maybe I didn't know what size my fuel lines were!

Here is my quandary......I am about to replace all of my fuel and vent lines but I am unsure as to what size to use.

Using the link below.....what size should my fuel lines be for a

1972
250 inline 6 cylinder
2 wheel drive
1/2 ton
manual shift

I'll need sizes for all fuel lines and vent lines.

THANKS!

http://www.lmctruck.com/icatalog/cb/full.aspx?Page=135

[wreckedchevy]

http://67-72chevytrucks.com/vboard/s...d.php?t=508902
didn't find your answer here but some good advice on making lines

[LockDoc]

Originally Posted by In The Ten Ring

OK....so maybe I didn't know what size my fuel lines were!

Here is my quandary......I am about to replace all of my fuel and vent lines but I am unsure as to what size to use.

Using the link below.....what size should my fuel lines be for a

250 inline 6 cylinder
2 wheel drive
1/2 ton
manual shift

I'll need sizes for all fuel lines and vent lines.

THANKS!

http://www.lmctruck.com/icatalog/cb/full.aspx?Page=135

The only thing you forgot was the year...

5/16" for all of the 6's fuel lines and I don't think you would have any vent lines unless it is a '71 or '72 with the emissions equipment....

LockDoc

[In The Ten Ring]

Originally Posted by LockDoc

The only thing you forgot was the year...

5/16" for all of the 6's fuel lines and I don't think you would have any vent lines unless it is a '70 or '71 with the emissions equipment....

LockDoc

OOPS! I always forget some essential detail!!!!

1972

[LockDoc]

Originally Posted by In The Ten Ring

OOPS! I always forget some essential detail!!!!

1972

I edited my last post. I meant to type '71 or '72. I can't help on the vent lines because I don't have any trucks that use the emissions.

LockDoc

[GRX]

My opinion is you will need 5/16" for the fuel and 1/4" for the return.