Fuel line help?

-
D

dusterforever

Well-Known Member
Joined
Apr 20, 2008
Messages
174
Reaction score
6
Location
North Central Texas
Engine and tranny are out of car...just wondering if the stock 5/16 fuel line is going to flow enough for a 360 or 408. Plan to use a holley mechanical pump and 750 holley carb. Also do I need to do away with the return line and use a vented gas cap? Any suggestions would be appreciated. What material should I use if changing to 3/8 line?
 
dusterforever said:
Engine and tranny are out of car...just wondering if the stock 5/16 fuel line is going to flow enough for a 360 or 408. Plan to use a holley mechanical pump and 750 holley carb. Also do I need to do away with the return line and use a vented gas cap? Any suggestions would be appreciated. What material should I use if changing to 3/8 line?
Click to expand...

Put at least a 3/8' line on it along with a minimum 3/8" sending unit. 5/16" might feed it, but why chance it. I've done a number of test with nothing but a feed line change and the results were NEVER worse with a larger feed line.

You can buy bulk steel line at Napa or any well stocked auto parts house. Use the old line as a template. Get a tube bender which is relatively cheap.

You can get formed steel lines from a number of vendors. Aluminum line works and is about $20-25 from summit. If you go with the tube nuts/sleeves, cost adds up fast.

If you drive it on the street a lot, I'd go with a steel line for durability.
 
Mopar Performance recommended 3/8 for their 390hp EFI360.
I think I ordered mine from Year One. Shipped gently bent over but is a good fit when straightned out.
Mine worked fine with a vented cap and the return line capped off.
 
crackedback said:
You can get formed steel lines from a number of vendors. Aluminum line works and is about $20-25 from summit. If you go with the tube nuts/sleeves, cost adds up fast.

If you drive it on the street a lot, I'd go with a steel line for durability.
Click to expand...


VERY true---the fittings add right up, especially once you do a 45 or 90 degree turn ! $$$$

If you DO go that route , watch ebay for used fittings--you can save a LOT of $.


example - The fitting from alum tube to hose end is $18 each .
 
You must log in or register to reply here.
-

Back
Top