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66 Chevelle SS396 & 66 Chevelle 327 Convertible.
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Discussion Starter #1
I am using a 4160 Holley carb 600 cfm and can't seem to find a 3/8" line, so wondering if this sufficient for my current build to resemble a L79.

350 SB about 10.1 CR with the camelback looking heads, 60 CC, winters intake, and a Lunati roller cam and double roller 1.55 rockers.
20120711LN cam 219/227 @ .50, lift .515/.530
line from tank to pump is 3/8".
 

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Premium Member
66 Chevelle SS396 & 66 Chevelle 327 Convertible.
Joined
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6,963 Posts
Discussion Starter #3
Eric Jackson has the carb for a rebuild. He says I can get either a 3/8 or 5/16 fitting at the carb. It threads into the front fuel bowl. my current fuel pump is for a 3/8" pipe. I think I would also need a different pump (napa has one 3/8 in 5/16 out) if I were to go with the 5/16 line. So it looks like I could go with that; but is it big enough.

I was wondering if I could use a BB line which is 3/8 to 3/8? I actually have one in the garage. But I think I would have to do some bending of the line. I think I would like to try that first and go the new pump/new line/different carb fitting If that doesn't work.

I wonder if I will be able to bend BB line by hand or if something special would be needed.


What size is the fitting on your carb. 3/8 or 5/16 and is it hose or thread type fitting.
 

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Eric Jackson has the carb for a rebuild. He says I can get either a 3/8 or 5/16 fitting at the carb. It threads into the front fuel bowl. my current fuel pump is for a 3/8" pipe. I think I would also need a different pump (napa has one 3/8 in 5/16 out) if I were to go with the 5/16 line. So it looks like I could go with that; but is it big enough.

I was wondering if I could use a BB line which is 3/8 to 3/8? I actually have one in the garage. But I think I would have to do some bending of the line. I think I would like to try that first and go the new pump/new line/different carb fitting If that doesn't work.

I wonder if I will be able to bend BB line by hand or if something special would be needed.
I don't think you need the 3/8" line. The fuel is under presure from the pump to carb. You have to decide how to go. It is hard to bend 3/8 line. You will need a tube bending tool or it will kink. It would look more correct with the chrome 5/16 line.
 

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I am using a 4160 Holley carb 600 cfm and can't seem to find a 3/8" line, so wondering if this sufficient for my current build to resemble a L79.

350 SB about 10.1 CR with the camelback looking heads, 60 CC, winters intake, and a Lunati roller cam and double roller 1.55 rockers.
20120711LN cam 219/227 @ .50, lift .515/.530
line from tank to pump is 3/8".
Sure is, I have run mid 12's in the past with 5/16" fuel lines. Smaller lines hurt mostly on the big end of the RPM range.
 
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